Question

qual o polinomio que expressa a soma entre x2-9x+5e3x2+7x-1

Answer 1

(x^2 - 9x + 5) + (3x^2 + 7x - 1) = x^2 + 3x^2 - 9x + 7x + 5 - 1 => 4x^2 - 2x + 4.

Answer 2

Ola Marcos

x² + 3x² = 4x²
-9x + 7x = -2x
5 - 1 = 4

4x² - 2x + 4