SOLUTION: use the quadrtic formula for: 4x^2+x-3=0

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Question 680789: use the quadrtic formula for:

4x^2+x-3=0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
4x^2+x-3=0
compare with ax^2+bx+c=0
Find the roots of the equation by quadratic formula
a= 4 b= 1 c= -3

b^2-4ac= 1 - -48
b^2-4ac= 49 sqrt%28%0949%09%29= 7
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=( -1 + 7 )/ 8
x1= 0.75
x2=( -1 -7 ) / 8
x2= -1
The roots are 0.75,-1