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OpenStudy (anonymous):
solve for x 4x(x-5)-5x(x-4)=-1
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OpenStudy (anonymous):
4x^2-20x-5x^2+20x=-1 -x^2=-1 x^2=1 \[x=\pm1\]
OpenStudy (anonymous):
so i have to put that symbol or can i leave it as 1
OpenStudy (anonymous):
Do you know what that symbol means?
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