Question

resuelve y simplifica
a.(x-5)(x-2)+(x+3)(x-5)
b.(7a+3b)(7a-8b)+(a-b)(a-4b)​​

Answer 1

Respuesta:

5.

$2 {x}^{2} - 5x - 13$

6.

$50 {a}^{2} - 40ab - 20 {b}^{2}$