SOLUTION: please help me factor or complete the square {{{C}}} thanks

Question 439100: please help me factor or complete the square

thanks
Found 2 solutions by jorel1380, unlockmath:
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
6x2-7x=20
6x2-7x-20=0
(3x+4)(2x-5)=0
x=-4/3 or 5/2.

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=529 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 2.5, -1.33333333333333. Here's your graph:

Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
First subtract 20 from both sides to get:
6x^2-7x-20=0
Factor:
(3x+4)(2x-5)
Now we can solve for x:
x=-4/3
x=5/2
There we go.
Make sense?
RJ
www.math-unlock.com
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