# math

posted by
**sara** on
.

I tried solving these problems and get stuck . Can you please tell me what am I suppose to do next or did I do them all wrong

1. (x+5)^2 = (x+4)^2

√(x+5)^2 = √(x+4)^2

x+5 = x+4

?

2. (4x+7)^2 = 144

√(4x+7)^2 = √144

4x+7 = 12

?

3. (x-5)^2 = 30

√(x-5)^2 = √30

x-5 = ??