Question

3x8+11 x 6-13x5+9x3-7x2+13 para x=3​

Answer 1

Respuesta:

24 736

Explicación paso a paso:

$3x^{8}+ 11x^{6}- 13x^{5} +9x^{3}- 7x^{2} +13\\\\=x^{2}(3x^{6}+ 11x^{4}- 13x^{3} +9x - 7) +13 \\\\=9(x[3x^{5}+11x^{3}-13x^{2}+9]-7)+13\\\\=9(3[x^{2} ( 3x^{3}+11x -13)+9]-7)+13\\\\=9(3[9(x[3x^{2}+11]-13)+9]-7)+13\\\\=9(3[9(3[3(9)+11]-13)+9]-7)+13\\\\= 9(3[9(3[38]-13)+9]-7)+13\\\\ =9(3[9(101)+9]-7)+13 \\\\=9(3[918]-7)+13 \\\\= 9(2747)+13\\=24736$