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Mathematics 10 Online
OpenStudy (anonymous):

(4a-1)(5a-3)

OpenStudy (anonymous):

\[4a\times 5a+4a\times (-3)+(-1)\times 5a+(-1)\times (-3)\] is a start, via the distributive law

OpenStudy (anonymous):

Foil Method maybe?

OpenStudy (anonymous):

OpenStudy (anonymous):

i did distributive and got 20a^2-17a+3

OpenStudy (anonymous):

uhhh, never mind! sorry. just kiddin

OpenStudy (anonymous):

@aea2213 you are right

OpenStudy (anonymous):

thanks vacuole

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