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Mathematics 14 Online
OpenStudy (anonymous):

1.Solve 5x2 = –45x

OpenStudy (anonymous):

Add 45x to the left side. Then factor out 5.

OpenStudy (anonymous):

\[5x^2 = -45x\] \[5x^2 + 45x = 0\] \[5x(x + 9) = 0\] Can you pick it up from here?

OpenStudy (anonymous):

5x2+45x=0 5x(x+9)=0 5x=0 x+9=0 Solve the last two equations.

OpenStudy (anonymous):

so my final answer would be x=0 and x=9?

OpenStudy (anonymous):

x=-9 *

OpenStudy (anonymous):

Correct.

OpenStudy (anonymous):

Thanks you guys! (:

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