How do you factor 2x^2+3x-2?

2 Answers
May 22, 2015

You can find its roots and then turn them into factors. I"ll use Bhaskara to find the roots.

(-3+-sqrt(9-4(2)(-2)))/4
(-3+-5)/4
x_1=-2, which is the same as the factor x+2=0
x_2=1/2, which is the same as the factor 2x-1=0

Thus,

2x^2+3x-2=(x+2)(2x-1)

May 29, 2015

2x^2 + 3x - 2

Product = - 4
Sum = +3
Factors = 4, - 1
=

So spiting it up

2x^2 - x + 4x - 2

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

Hence factored