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Mathematics 16 Online
OpenStudy (anonymous):

Find the product (6x+3y)^2

OpenStudy (anonymous):

formula: (a)\[formula : \left( a \right)^{2} + 2 (a)(b) + (b)^{2} \]

OpenStudy (anonymous):

if you need further help, don't hesistate

OpenStudy (anonymous):

i dont understand

OpenStudy (anonymous):

nameless, your pretty good at explaining.. why don't you give it a try?

OpenStudy (anonymous):

\[(6x+3y)^{2}\]?

OpenStudy (anonymous):

\[formula: (6x)^{2}+ 2(6x) (3y) + (3y)^{2}\]

OpenStudy (anonymous):

we know that \[(a+b)^{2}=a^{2}+b^{2}+2ab\] so substitute a and b.

OpenStudy (anonymous):

yes nameless

OpenStudy (anonymous):

I would unpack those into two - (6x+3y)(6x+3y) and foil them.

OpenStudy (anonymous):

do you understand the FOIL method?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

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