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Mathematics 6 Online
OpenStudy (anonymous):

factor completely 20a^2+100 af+125f^2

OpenStudy (anonymous):

20(a^2+5af+6.25f^2)=0 20(a+2.5)^2=0 a=?

OpenStudy (saifoo.khan):

um.. that's way off.

OpenStudy (anonymous):

help me please =-/

OpenStudy (lgbasallote):

heh it works though

OpenStudy (lgbasallote):

the maths seem right

OpenStudy (lgbasallote):

but yeah..it doesnt look pretty... try factoring out 5 instead

OpenStudy (saifoo.khan):

\[5(4a^2 + 20af+25f^2)\]Now use that formula.

OpenStudy (saifoo.khan):

\[5(2a+5f)(2a+5f)\]

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