Question

3x (x -15) +56x
$\sqrt{25}x + 7x - 89y$

Answer 1

a)

2x*(x - 15) + 56x

2x² - 30x + 56x = 2x² + 26x

b)

√25x + 7x - 89y = 5x + 7x - 89y = 12x - 8y

Answer 2

Resposta:

Explicação passo-a-passo:

= 3x (x -15) +56x

= 3x^2 - 45x + 56x

= 3x^2 + 11x

= √{25}x + 7x - 89y

= 5x + 7x - 89y

= 12x - 89y