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OpenStudy (anonymous):
help please 4x(2x^3-7x^2+x) my answer 8x^4-28x^3+5x^2
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OpenStudy (shamil98):
8x^4 - 28x^3 + 4x^2 you dont add the 4 and 1 ._. you multiply.
OpenStudy (skullpatrol):
Sooo close :)
OpenStudy (anonymous):
what about this one -8y^3(7y^2-4y-1) i got -56y^5+32y^4+8
OpenStudy (skullpatrol):
You missed the LAST term AGAIN
OpenStudy (anonymous):
oh the y
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OpenStudy (skullpatrol):
$$\huge a(b+c+d)=ab+ac+ad$$
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