Question

PLEASE HELP WILL MARK BRAINLIEST!!

Answer 1

Answer:

Hello!

1st problem: x = 144

2nd problem: x = 14

3rd problem: x = 144

4th problem: x = 14

Answer 2

Answer:

Explanation below.

Step-by-step explanation:

1. a. $\sqrt{x} =12$

  b. $\sqrt{x} ^{2}=12^{2}$

  c. x=144

2. a. $\sqrt{x^{2} } =\sqrt{196}$

   b. x= 14

3.  

$\sqrt{x} -4 +4= 8+4\\\sqrt{x} =12\\x= 3.46410161514 \\or \\2\sqrt{3}$

4.

$2(x^{2} +3)=398\\x^{2} +3= 199\\x^{2} =196\\x=14$