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Mathematics 16 Online
OpenStudy (anonymous):

(x+7)(x+7)

OpenStudy (debbieg):

Do you know how to use FOIL?

OpenStudy (anonymous):

do you use that when dealing with polynomials?

OpenStudy (debbieg):

Yes, to multiply 2 binomials.

OpenStudy (anonymous):

so would 49+14x+x2 be the correct answer

OpenStudy (debbieg):

Assuming you mean x^2, yes. Although it is customary to put in descending order of the degree of the terms, e.g., the squared term, then the x term, then the constant. So: \[x ^{2}+14x+49\]

OpenStudy (anonymous):

thank you so much!

OpenStudy (debbieg):

You're welcome, happy to help. :)

OpenStudy (anonymous):

so question for (x-9)(x-9) I got x^2-18x+81 did I do this one correctly?

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