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OpenStudy (ell):
Help please!! :) Solve the equation by factoring: 7r^2-14r=-7
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OpenStudy (anonymous):
7r² - 14r + 7 = 0 7(r² - 2r + 1) = 0 7(r-1)(r-1) = 0 FACTORED r = 1
OpenStudy (ell):
thanx!:) but I thought there was supposed to be 2 answers....
OpenStudy (anonymous):
YW:) If there were two variables in the question, then you could solve for both, but here, you can only find r..
OpenStudy (ell):
oh! I see, haha(: thanks! Maybe you can help with this one?? 5r^2-44+120=-30+11
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