SOLUTION: 1. 2x^2+5x-3=0

Question 461813: 1. 2x^2+5x-3=0

Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
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2x^2+5x-3=0
you want factors of -6 that add up to 5
6 and -1
2x^2+6x-1x-3=0
2x*(x+3)-1*(x+3)=0
(2x-1)*(x+3)=0
x=1/2
x=-3

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=49 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 0.5, -3. Here's your graph:

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