SOLUTION: Please solve the following problem by using factoring and the zero-product property . 9r^2-30r+21=-4 Thank you.

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Question 1073217: Please solve the following problem by using factoring and the zero-product property .
9r^2-30r+21=-4

Thank you.
Found 2 solutions by jorel1380, josgarithmetic:
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
9rē-30r+21=-4
9rē-30r+25=0
(3r-5)(3r-5)=0
r=5/3. ☺☺☺☺

Answer by josgarithmetic(39617) About Me  (Show Source):