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Mathematics 12 Online
OpenStudy (anonymous):

solve 5x^2=-45x

OpenStudy (anonymous):

try putting all the terms equal to 0 and then factoring out

OpenStudy (anonymous):

x^2 = - 9x x = -9 is the solution

OpenStudy (anonymous):

You can't divide each side by x unless you claim x is not equal to 0

OpenStudy (anonymous):

hmm i know i didn't divide x, i used inspection.

OpenStudy (anonymous):

ah im sorry it appeared as though you did. but you still must include x=0

OpenStudy (anonymous):

Can you do it ?

OpenStudy (anonymous):

x^2 = -9x x^2 + 9x = 0 x(x + 9) = 0 now we get two solutions x =0 and x = 9 kiara don't do it my way (the way earlier I posted) walleye is right

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