Question

9x² - 25 é equilavente a:

Answer 1

Resposta:

$9x^2 - 25\\\\9x^2+15x-15x-25\\\\3x(3x +5) -5(3x +5)\\\\= (3x -5)(3x+)$

Explicação passo-a-passo:

Answer 2

9x²- 25

9x²+15x-15x-25

3x(3x+5)-5(3x+5)

=(3x-5)(3x+)