Question

y=(3×^3+2×^2+×+5)×(5×^2+×)​

Answer 1

Explicação passo-a-passo:

$y = (3x ^{3} + 2x^{2} + x + 5).(5x ^{2} + x) \\ \\ y = 15 x^{5} + 3x ^{4} + 10x^{4} + 2x^{3} + 5x^{3} + x^{2} + 25x^{2} + 5x \\ \\ y = 15x^{5} + 13x^{4} + 7x^{3} + 26x ^{2} + 5x$