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Mathematics 10 Online
OpenStudy (anonymous):

Factor. (x+2)^2 - 9

OpenStudy (anonymous):

looks like you have the difference of two perfect squares

OpenStudy (anonymous):

\[ (x+2)^2 - 9 = (x+2)^2 - 3^2 \]

OpenStudy (anonymous):

it says on my book its (x-)(x+5)

OpenStudy (anonymous):

(x-1) *

OpenStudy (anonymous):

@wio didn't do the problem for you, he just clarified that you have a difference of squares

OpenStudy (anonymous):

Oh sorry, I forgot how to do this. ):

OpenStudy (anonymous):

difference of perfect squares formula \[a^{2} - b^{2} = (a - b)(a + b)\]

OpenStudy (anonymous):

Okay, I'll try that. Thanks.

OpenStudy (anonymous):

yeah in this one a = x + 2 b = 3

OpenStudy (anonymous):

Thank you! :)

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