SOLUTION: 4x^2+7x-2=0 Please help

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Question 981712: 4x^2+7x-2=0
Please help
Found 3 solutions by macston, MathTherapy, EasySolvin:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
4x%5E2%2B7x-2=0
.
4%28x%5E2%2B%287%2F4%29x-1%2F2%29=0
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4%28x-1%2F4%29%28x%2B2%29=0
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x-1%2F4=0 OR x%2B2=0
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x=1%2F4 OR x=-2

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

4x^2+7x-2=0
Please help 
4x%5E2+%2B+7x+-+2+=+0

(4x - 1)(x + 2) = 0

4x -1 = 0          OR           x + 2 = 0

4x = 1             OR           x = 0 - 2

highlight_green%28system%28x+=+%281%2F4%29or%2Cx+=+-+2%29%29

Answer by EasySolvin(10) About Me  (Show Source):
You can put this solution on YOUR website!
Or use the Quadratic formula
x=%28-b%2Bsqrt%28b%5E2-4%2Aac%29%29%2F2%282%2Aa%29
a=4
b=7
c=-2
Plug it all in and you get -2,1/4