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OpenStudy (anonymous):
PLEASE help me on this i am sooo lost. 3x(x^2-7x+3)_4x(2+19x-2x^2)
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OpenStudy (anonymous):
is that a minus sign in the middle?
OpenStudy (anonymous):
3x(....+3) - 4x(....)?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
ok so first thing you expand out the bracket. 3x^3 - 21x^2 + 6x - (8x + 76x^2 - 8x^3) 3x^3 - 21x^2 + 6x - 8x - 76x^2 + 8x^3 11x^3 - 97x^2 -2x and this can be further simplified as x (11x^2 - 97x -2)
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