Solve by using the square root method.

4x2-8=136

Question 3 options:

{-2, 2}

{-6, 6}

{-12, 12}

{-144,144}

Save

Question

Lauryn Schmidt

28 October, 01:56

+4

Answers (1)

Know the Answer?

Case Webster · Answer 1

4x^2-8=136 subtract 136 from both sides

4x^2-144 ... this is a difference of perfect squares so

(2x+12) (2x-12)

x=±6 or as they put it:

{-6, 6}

Solve by using the square root method.4x2-8=136Question 3 options:{-2, 2}{-6, 6}{-12, 12}{-144,144}Save