SOLUTION: I find no factoring for 27r2 - 72 = 0. I want to know how the answer of 0=0 is calculated? Thanks.
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Question 392208: I find no factoring for 27r2 - 72 = 0. I want to know how the answer of 0=0 is calculated? Thanks.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Factor 9.
so...
Add 8 to both sides.
Divide both sides by 3.
Take the square root.
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