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Mathematics 12 Online
OpenStudy (anonymous):

Write the answer in descending powers of x. (5x2 - 7)(5x2 + 7)

OpenStudy (anonymous):

ok so this one is easy

TheSmartOne (thesmartone):

|dw:1433944463257:dw|

OpenStudy (anonymous):

|dw:1433944456863:dw|

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