Question

What is the solution of sqrt 2x + 4 = 16 ? x = 6 x = 72 x = 126 no solution

Answer 1

C on Edge

Explanation:

Received a 100% on the quiz.

Answer 2

Answer: Third option is correct.

Explanation:

Since we have given that

`√(2x+4)=16`

We need to find the value of 'x'.

First we squaring the both sides:

`(√(2x+4))^2=16^2\\\\2x+4=256\\\\2x=256-4\\\\2x=252\\\\x=(252)/(2)\\\\x=126`

Hence, the value of x is 126.

Therefore, Third option is correct.