SOLUTION: Please help me solve (x-1)�=-7

Question 79575: Please help me solve (x-1)�=-7

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
(X-1)^2=-7
X^2-2X+1=-7
X^2-2X+8
USING THE QUADRATIC EQUATION WE GET:
X=(2+1SQRT[-2^2-4*1*8])/2*1
X=(2+-SQRT4-32])/2
X=(2+-SQRT-28)/2
X=(2+-5.2515i)/2
X=2/2+5.2515i/2
X=1+2.64575i ANSWER
X=2/2-5.2515i
X=1-2.64575i ANSWER.
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