SOLUTION: can the roots of x^2-7x+4=0 be found by factoring? explain.

SOLUTION: can the roots of x^2-7x+4=0 be found by factoring? explain.

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Question 356863: can the roots of x^2-7x+4=0 be found by factoring? explain.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
No, if you look at the discriminant,

Since it's not a perfect square, you will have two irrational roots.
To factor you need integer roots, which happen when the discriminant is a perfect square.

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