Question

(x + 3)2 = x2 + 2.X. 3+3²​

Answer 1

Respuesta:

$\frac{-1}{2}$

Explicación paso a paso:

(x + 3)2 = x2 + 2.X. 3+3²​

2x + 6 = 2x + 6x + 9

2x + 6 = 8x +9

-6x = 3

6x= -3

x= $\frac{-3}{6}$ = $\frac{-1}{2}$