for #1, you also have to consider
x+5 = -(x+4)
2x = -9
x = -9/2
#2: 4x+7 = ±12
x = 5/4 or -19/4
#3: x-5 = ±√30
x = 5 ± √30
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 = ??
2 answers
for #1, where did you get the negative for - ( x+ 4 )