math
posted by sara .
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. (x5)^2 = 30
√(x5)^2 = √30
x5 = ??
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