Use square roots to solve these equations. Round to the nearest hundredth if necessary.

Question

5x^2 + 536 = 651.

Also,problem 2: 3z^2 + 52 = -56

Answer 1

5 x^2 = 651-536 = 115

x^2 = 23
x = +/- sqrt 23 = +/- 4.80

Answer 2

3 z^2 = -108
z^2 = -36
z = +/-6 sqrt -1
= +/- 6i