SOLUTION: solve each equation using the quadratic formula:
1.) 4x^2+x-5=0
2.) 2x^2-5x+2=0
3.)3x^2+7=-6x
4.) 7x^2-x-12=0
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Question 396016: solve each equation using the quadratic formula:
1.) 4x^2+x-5=0
2.) 2x^2-5x+2=0
3.)3x^2+7=-6x
4.) 7x^2-x-12=0
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
1.) 4x^2+x-5=0
I will solve one with detailed steps. Rest i am sure you can walk through
Find the roots of the equation by quadratic formula
a= 4 , b = 1 , c = -5
b^2-4ac= 1*1 - (4*4*(-5))= 81 .
x1=1
...
x2= -1.25
1, -1.25 are the roots of the equation.
2.) 2x^2-5x+2=0
a=2,b=-5,c=2
3.)3x^2+7=-6x
4.) 7x^2-x-12=0
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