Math help needed solving equations and simplifying

Question

Using the square root property to solve the following equations, simplify the solutions show work

A. x^2=50

B. 5(2x+9)^2=980

Answer 1

x^2=50

x=+/-sqr50=+/-sqr2sqr25

x=+/-5sqr2

5(2x+9)= 980

(2x+9)^2 =980/5=198

2x+9=+/-sqr198

2x=-9+/-3sqr22

x=-4.5+/-1.5sqr22