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OpenStudy (anonymous):
find the product (j+7)(j-7) and also this question (4m^2-5) (4m^2+5) Medals will be given
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OpenStudy (dtan5457):
(j+7)(j-7) use foil j^2-7j+7j-49 so that would be j^2-49
OpenStudy (dtan5457):
(4m^2-5) (4m^2+5) same thing 16m^4+20m^2-20m^2-25 which is 16m^4-25
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