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OpenStudy (anonymous):
what?
OpenStudy (anonymous):
^2 means to the power of 2
OpenStudy (campbell_st):
ok so you need to know
\[(8y + 2)^2 = (8y + 2) \times (8y + 2)\]
now you can split the terms in the 1st set of brackets to
8y(8y + 2) + 2(8y + 2)
now distribute and lastly collect like terms.
and alternate method is to use a grid
|dw:1421959398932:dw|
the terms in each square of the grid is are the product of the terms in the row and column