Question

– Aplicando a fatoração em X
$x ^{2} + x - 6$
encontramos:
​

Answer 1

Resposta:

letra b

Explicação passo-a-passo:

X^2+x-6

A=1 B=1 C=-6

X= -b+-\/´´b^2-4.a.c´

´´´´´´´´´´´´´´´´2´´´´´´´´´´´´´´´´´´

X= -1 +-\/´´´1-4.1.(-6)

´´´´´´´´´´´´´´2.1`````````````````

X= -1 +-\/´´´1+ 24´´´´´

´´´´´´´´´´´´´´´2´´´´´´´´´´´´´´

X= -1 +-\/´´´25

´´´´´´´´´´´´´2´´´´´´´´´´´

X= -1 +-5

´´´´´´´´2´´´´´´´´´´

X1= -1+5= 4 ÷2 = 2

´´´´´´´´´2´´´´´

X2= -1 -5 = 6÷2 = 3

´´´´´´´´´2´´´´´´

( x -2) . (x +3)