{"id":116375,"date":"2020-01-29T18:22:18","date_gmt":"2020-01-29T17:22:18","guid":{"rendered":"https:\/\/www.superprof.es\/diccionario\/algebra\/valor-numerico.html"},"modified":"2026-10-01T22:47:36","modified_gmt":"2026-10-01T20:47:36","slug":"valor-numerico","status":"publish","type":"post","link":"https:\/\/www.superprof.es\/diccionario\/matematicas\/algebra\/valor-numerico.html","title":{"rendered":"Valor num\u00e9rico"},"content":{"rendered":"<section style=\"\">\r\n          \n\n<h3 class=\"r wp-block-heading\">Valor num\u00e9rico de una expresi\u00f3n algebraica<\/h3>\n\n\r\n              \r\n                          \n\n<p class=\"wp-block-paragraph\" >El <strong>valor n\u00famerico de una expresi\u00f3n algebraica<\/strong>, para un determinado valor, es el n\u00famero que se obtiene al sustituir en \u00e9sta por  valor num\u00e9rico dado y realizar las operaciones indicadas.<\/p>\n\n\r\n                          \n\n<p class=\"actividades_r_ir wp-block-paragraph\"><span> L(r)  = 2<img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/valor-num&eacute;rico-1.gif\" alt=\"Explicaciones y ejemplos de valor num&eacute;rico - 1\" \/>r<\/span><\/p>\n\n\r\n\t\t\t\t\t\t  \n\n<p class=\"actividades_g_ir wp-block-paragraph\">r  = 5 cm.   <span>L(5)= 2<strong> \u00b7 <\/strong> <\/span><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/valor-num&eacute;rico-2.gif\" alt=\"Explicaciones y ejemplos de valor num&eacute;rico - 2\"  height=\"17\" style=\"vertical-align:middle;\" \/><strong> \u00b7 <\/strong>\t\t\t\t\t\t    5 = 10<img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/valor-num&eacute;rico-3.gif\" alt=\"Explicaciones y ejemplos de valor num&eacute;rico - 3\" width=\"18\" \/> cm<\/p>\n\n\r\n                          \n\n<p class=\"actividades_r_ir wp-block-paragraph\"><span class=\"actividades_2_g\">S(l) = l<sup>2<\/sup><\/span><\/p>\n\n\r\n\t\t\t\t\t\t  \n\n<p class=\"actividades_2_g_ir wp-block-paragraph\">l  = 5 cm       \t<span>A(5) = 5<sup>2<\/sup> = 25   cm<sup>2<\/sup><\/span><\/p>\n\n\r\n\t\t\t\t\t\t\t\n\n<p class=\"actividades_r_ir wp-block-paragraph\"><span class=\"actividades_2_g\">V(a)  = a<sup>3<\/sup><\/span><\/p>\n\n\r\n\t\t\t\t\t\t  \n\n<p class=\"actividades_2_g_ir wp-block-paragraph\">a =  5 cm        <span>\u00a0V(5)  = 5<sup>3<\/sup> <\/span>= 125 cm<sup>3<\/sup><\/p>\n\n\r\n \r\n\r\n\t\t\t\t\t\t\n\n<h3 class=\"r wp-block-heading\">Valor num\u00e9rico de un polinomio<\/h3>\n\n\r\n                        \n\n<p class=\"wp-block-paragraph\">El <strong>valor num\u00e9rico de un polinomio<\/strong> es el resultado que obtenemos al sustituir la variable x por un n\u00famero cualquiera.<\/p>\n\n\r\n\t\t\t\t\t\t  \n\n<p class=\"actividades_r_ir wp-block-paragraph\">P(x) = 2x<sup>3<\/sup> + 5x - 3 ; x = 1<\/p>\n\n\r\n\t\t\t\t\t\t\t\t\n\n<p class=\"actividades_2_v_ir wp-block-paragraph\">P(1) = 2 \u00b7 1<sup>3<\/sup> + 5 \u00b7 1 - 3  = 2 + 5  - 3  = 4 <\/p>\n\n\r\n                                \n\n<p class=\"actividades_r_ir wp-block-paragraph\">Q(x) = x<sup>4<\/sup>  \u2212 2x<sup>3<\/sup> + x<sup>2<\/sup> + x  \u2212 1 ; x  = 1 <\/p>\n\n\r\n\t\t\t  \n\n<p class=\"actividades_2_v_ir wp-block-paragraph\">Q(1) = 1<sup>4<\/sup> \u2212 2 \u00b7 1<sup>3<\/sup> + 1 <sup>2<\/sup> + 1  \u2212 1 = 1  \u2212 2 + 1 + 1  \u2212 1 = 0 <\/p>\n\n\r\n\t\t\t\t\t\t\n\n<p class=\"actividades_r_ir wp-block-paragraph\">R(x) = x<sup>10<\/sup> \u2212 1024 : x = \u22122<\/p>\n\n\r\n              \n\n<p class=\"actividades_2_v_ir wp-block-paragraph\">R(\u22122) = (\u22122)<sup>10<\/sup> \u2212 1024 =  1024 \u2212 1024 = 0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/section><\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Valor num\u00e9rico de una expresi\u00f3n algebraica El valor n\u00famerico de una expresi\u00f3n algebraica, para un determinado valor, es el n\u00famero que se obtiene al sustituir en \u00e9sta por valor num\u00e9rico dado y realizar las operaciones indicadas. L(r) = 2r r = 5 cm. L(5)= 2 \u00b7 \u00b7 5 = 10 cm S(l) = l2 l [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[378],"tags":[365],"class_list":["post-116375","post","type-post","status-publish","format-standard","hentry","category-algebra","tag-v"],"acf":[],"author_meta":{"display_name":"Andra","author_link":"https:\/\/www.superprof.es\/diccionario\/author\/andra"},"featured_img":null,"coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/algebra\" class=\"advgb-post-tax-term\">\u00c1lgebra<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">\u00c1lgebra<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/algebra\" class=\"advgb-post-tax-term\">v<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">v<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Publicado 7 a\u00f1os hace","modified":"Actualizado 4 d\u00edas hace"},"absolute_dates":{"created":"Publicado el 29 enero 2020","modified":"Actualizado el 1 octubre 2026"},"absolute_dates_time":{"created":"Publicado el 29 enero 2020 18 h 22 min","modified":"Actualizado el 1 octubre 2026 22 h 47 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/116375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/comments?post=116375"}],"version-history":[{"count":3,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/116375\/revisions"}],"predecessor-version":[{"id":138413,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/116375\/revisions\/138413"}],"wp:attachment":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/media?parent=116375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/categories?post=116375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/tags?post=116375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}