Question

ײ-9,ײ-5×+6ײ-2×-3

Answer 1

Respuesta:

$\left(7x^2-7x-3\right)\cdot \left(x+3\right)\cdot \left(x-3\right)$

Explicación:

$x^2-9\\\\=x^2-3^2\\\\x^2-3^2=\left(x+3\right)\left(x-3\right)\\\\=\left(x+3\right)\left(x-3\right)\\\\x^2-5x+6x^2-2x-3\\\\=x^2+6x^2-5x-2x-3\\\\=7x^2-5x-2x-3\\\\=7x^2-7x-3\\\\=\left(7x^2-7x-3\right)\cdot \left(x+3\right)\cdot \left(x-3\right)$

Answer 2

Respuesta:

11×12+24÷56=40dddddd