SOLUTION: Solve the eqation. (x-10)(x-2)=-20

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Question 122493: Solve the eqation. (x-10)(x-2)=-20
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-10%29%28x-2%29=-20
Use the FOIL method (First, Outer, Inner, Last)
%28x%29%28x%29%2B%28x%29%28-2%29%2B%28-10%29%28x%29%2B%28-10%29%28-2%29=-20
x%5E2-2x-10x%2B20=-20
x%5E2-12x%2B20=-20
x%5E2-12x%2B40=0
x+=+%28-%28-12%29+%2B-+sqrt%28+12%5E2-4%2A%281%29%2A%2840%29+%29%29%2F%282%29+
x+=+%2812+%2B-+sqrt%28+144-160+%29%29%2F%282%29+
x+=+%2812+%2B-+sqrt%28+-16+%29%29%2F%282%29+
x+=+%2812+%2B-+4%2Asqrt%28+-1+%29%29%2F%282%29+
x+=+6+%2B-+2%2Asqrt%28+-1+%29+
x+=+6+%2B-+2i+