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Mathematics 18 Online
OpenStudy (anonymous):

Find the product [6y - (7x - 2)][6y + (7x - 2)] Must show work

OpenStudy (anonymous):

do you know the difference of squares formula?

OpenStudy (anonymous):

I use to, its been awhile though.

OpenStudy (anonymous):

a^2 - b^2 = (a+b)(a-b)

OpenStudy (anonymous):

Ahhh, yes. I remember.

OpenStudy (anonymous):

I don't really remember how to apply the formula though.

OpenStudy (anonymous):

\[(6y-7x+2)(6y+7x-2)\]

OpenStudy (anonymous):

mathematicalpro, is that the final answer?

OpenStudy (anonymous):

nope, this is the 1st step

OpenStudy (anonymous):

ahh, okay.

OpenStudy (anonymous):

oh, okay.

OpenStudy (anonymous):

ohhh.

OpenStudy (anonymous):

\[36y^2+42yx-12y-42xy-49x^2+14x+12y+14x-4\]

OpenStudy (anonymous):

Is that the next step?

OpenStudy (anonymous):

\[-49x^2+28x+36y^2-4\]

OpenStudy (anonymous):

okay

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