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OpenStudy (anonymous):
5b^4-3125
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OpenStudy (anonymous):
what about it
OpenStudy (anonymous):
it needs to be factored...
OpenStudy (anonymous):
factor out a 5 first to make your life easier
OpenStudy (anonymous):
5 (-5 + b) (5 + b) (25 + b^2)
OpenStudy (anonymous):
given\[5b^4-3125\]factor out 5\[5(b^4-625)\]diference of squares\[=5(b^2-25)(b^2+25)\]diff of squares again\[=5(b-5)(b+5)(b^2+25)\]
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OpenStudy (anonymous):
@mandolino nice explanation !!!
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