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Mathematics 14 Online
OpenStudy (anonymous):

Which polynomial expression represents the area of the outermost square tile, shown below? x2 + 6x − 6 x2 − 9x + 6 x2 + 6x − 9 x2 − 6x + 9

OpenStudy (anonymous):

OpenStudy (anonymous):

that's x^2 for the first variable fo all of them

OpenStudy (amoodarya):

\[(x-3)^2\]

OpenStudy (anonymous):

???

OpenStudy (anonymous):

@ganeshie8 can u plz help me?

ganeshie8 (ganeshie8):

whats the side length of the outer most square ?

OpenStudy (anonymous):

x-3

ganeshie8 (ganeshie8):

yes, next recall the formula for area of square : http://www.calculateme.com/cArea/area-of-a-square.gif

OpenStudy (anonymous):

oh ok so it is x-3^2 which equals x-9

ganeshie8 (ganeshie8):

Area = (x-3)^2 = (x-3)(x-3) = ?

ganeshie8 (ganeshie8):

the square is for the entire (x-3) okay ?

OpenStudy (anonymous):

wait no its different with the parerenthases

ganeshie8 (ganeshie8):

yes it will be different

OpenStudy (anonymous):

so its \[x^2-6x+9\] right?

ganeshie8 (ganeshie8):

Excellent !!

OpenStudy (anonymous):

Thank You!

ganeshie8 (ganeshie8):

yw

OpenStudy (anonymous):

@ganeshie8 help how about with x+3

OpenStudy (anonymous):

@amistre64

OpenStudy (anonymous):

@aaronq

OpenStudy (anonymous):

@phi

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