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3x^2 – X – 2 = 0 how do I solve this by factoring​

User Jmerkow
by
5.4k points

1 Answer

4 votes

Answer:


x=-(2)/(3) or
x=1

Explanation:

The given quadratic equation is
3x^2-x-2=0

You split the middle term with
2x-3x to get:


3x^2+2x-3x-2=0

We now factor by grouping to get:


x(3x+2)-1(3x+2)=0

Factor again to get:


(3x+2)(x-1)=0

Apply the zero product principle to get:


(3x+2)=0 or
(x-1)=0

This implies that:


x=-(2)/(3) or
x=1

User Renel
by
5.9k points