SOLUTION: use the quadratic formula to solve the equation -2X^2+6X+8=0

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Question 139448: use the quadratic formula to solve the equation
-2X^2+6X+8=0
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
-2X^2+6X+8=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(-6+-SQRT[6^2-4*-2*8])/2*-2
X=(-6+-SQRT[36+64])/-4
X=(-6+-SQRT100)/-4
X=(-6+-10)/-4
X=(-6+10)/-4
X=4/-4
X=-1 ANSWER.
X=(-6-10)/-4
X=-16/-4
X=4 ANSWER.