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OpenStudy (anonymous):
r^2 – 49
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OpenStudy (anonymous):
what is the factored form of the expression?
OpenStudy (hoblos):
(r-7)(r+7)
OpenStudy (arnavguddu):
(r2-49) = (r2-7^2) = (r-7)(r+7)
OpenStudy (hoblos):
a^2-b^2 = (a-b)(a+b)
OpenStudy (anonymous):
(r-7)(r+7)
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