Question

NEED DONE ASAP!!

Solve. Show your steps
A.3x2 + 4 = 52
B.x2 - 121 = 0
C.(b + 4)2 = 49

Answer 1

A. 3x^2 + 4 = 52

3x^2 = 52 - 4

3x^2 = 48

x^2 = 48/3

x^2 = 16

x =
`√(16)`

x = 4

B. x^2 - 121 = 0

x^2 = 121

x =
`√(121)`

x = 11

C. (b + 4 )2 = 49

2b + 8 = 49

2b = 49 - 8

2b = 41

b = 41/2