pls... need it again
(3x=7)²=15 ??
do you mean
(3x+7)²=15 or (3x-7)²=15?
(3x-7)^2=15
3x-7=+-â15
3x=7+-â15
X=[7+-â15]/2
I think you mean
(3x+7)²=15
3x+7 = ± â15
3x = â15 -7 => x = (â15 -7 ) /3
3x = -â15 -7 => x= (-â15 -7 ) /3
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Verified answer
(3x=7)²=15 ??
do you mean
(3x+7)²=15 or (3x-7)²=15?
(3x-7)^2=15
3x-7=+-â15
3x=7+-â15
X=[7+-â15]/2
I think you mean
(3x+7)²=15
3x+7 = ± â15
3x = â15 -7 => x = (â15 -7 ) /3
3x = -â15 -7 => x= (-â15 -7 ) /3