SOLUTION: Are the roots rational or irrational in 5x^2-7x-6=0

SOLUTION: Are the roots rational or irrational in 5x^2-7x-6=0

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Question 1079807: Are the roots rational or irrational in 5x^2-7x-6=0
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
look at discriminant b^2-4ac=49+120=169
This is a perfect square, so roots are rational numbers
(5x+3)(x-2)=0
x=-3/5,2, rational

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