SOLUTION: find the roots of -2x^2-3x-9=0 in simplest a+bi form

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Question 400465: find the roots of -2x^2-3x-9=0 in simplest a+bi form
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%283+%2B-+sqrt%28+%28-3%29%5E2-4%2A%28-2%29%2A%28-9%29+%29%29%2F%282%2A%28-2%29%29+
x+=+%283+%2B-+sqrt%28+9-72+%29%29%2F%28-4%29+
x+=+%283+%2B-+sqrt%28+-63%29%29%2F%28-4%29+
x+=+%283+%2B-+3%2Asqrt%28+7%29%2Ai%29%2F%28-4%29+
x+=+-%283%2F4%29+%2B-+%283%2Asqrt%28+7%29%2F4%29%2Ai+