SOLUTION: How do u solve for the solutions in the problem x^2-4x=-8

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Question 148580: How do u solve for the solutions in the problem
x^2-4x=-8

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-4x=-8
x%5E2-4x%2B8=0 Add 8 to both sides.
Use the quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
which solves the general quadratic equation,ax%5E2%2Bbx%2Bc=0
x+=+%28-%28-4%29+%2B-+sqrt%28+%28-4%29%5E2-4%2A1%2A8+%29%29%2F%282%2A1%29+
x+=+%284+%2B-+sqrt%28+16-32+%29%29%2F%282%29+
x+=+%284+%2B-+sqrt%28+-16+%29%29%2F%282%29+
x+=+%284+%2B-+sqrt%28+16+%29sqrt%28-1%29%29%2F%282%29+
x+=+%284+%2B-+4i%29%2F%282%29+
x+=+2+%2B-+2i+