Solve for x.

Question

Problem #22
25x^2 = 13

My answer: x = + - radical (13)/(5)

Problem #32

2 (x - 5 )^2 = 3

My answer: x = 5 +- radical (3)/(2)

Problem #42

Solve for x

x^2+4x+4=7 (hint factor the left-hand side)

My answer: x = -2 +- radical (7)