Which statement describes how to solve 3sqrt (x^2-6) = 3sqrt (2x+2)

Square both sides and then solves the resulting quadratic equations

Square both sides and then solve the resulting cubic equations

Cube both sides and then solve the resulting quadratic equations

Cube both sides and then solve the resulting cubic equations

Question

Allisson

Mathematics

17 April, 19:57

Which statement describes how to solve 3sqrt (x^2-6) = 3sqrt (2x+2)

Square both sides and then solves the resulting quadratic equations

Square both sides and then solve the resulting cubic equations

Cube both sides and then solve the resulting quadratic equations

Cube both sides and then solve the resulting cubic equations

+1

Answers (2)

Know the Answer?

Luca Mejia · Answer 1

3√ (x^2-6) = 3√ (2x+2) square both sides

9 (x^2-6) = 9 (2x+2)

x^2-6=2x+2

x^2-2x-8=0 then solve the resulting quadratic equation.

x^2-4x+2x-8=0

x (x-4) + 2 (x-8) = 0

(x+2) (x-8) = 0

x=-2, 8

Valentino · Answer 2

I belive its Square both sides and then solve the resulting cubic equations