SOLUTION: If the roots of the x^2-10x+21=m are equal then m is: (A)4. (B)25. (C)-4. (D)0

SOLUTION: If the roots of the x^2-10x+21=m are equal then m is: (A)4. (B)25. (C)-4. (D)0

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Question 982267: If the roots of the x^2-10x+21=m are equal then m is:
(A)4. (B)25. (C)-4. (D)0
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Find what's needed to make the left side a perfect square.
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