contestada

Solve (x + 3)^2 + (x + 3) – 2 = 0.
Let u = x+3
Rewrite the equation in terms of u.

A. u^2 + u – 2 = 0

B. (u^2 + 9) + u – 2 = 0

C. u^2 + u + 1 = 0

Respuesta :

calculista

Answer:

The answer is the option A

[tex]u^{2}+u-2=0[/tex]

Step-by-step explanation:

we have

[tex](x+3)^{2}+(x+3)-2=0[/tex]

Let

[tex]u=(x+3)[/tex]

Substitute

[tex](u)^{2}+(u)-2=0[/tex]

Step-by-step explanation:

. Answer is B.

Otras preguntas