(X^3+X^2-7)/(x-3)怎么化简?
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(X^3+X^2-7)/(x-3)怎么化简?
![(X^3+X^2-7)/(x-3)怎么化简?](/uploads/image/z/19843450-34-0.jpg?t=%28X%5E3%2BX%5E2-7%29%2F%28x-3%29%E6%80%8E%E4%B9%88%E5%8C%96%E7%AE%80%3F)
(X^3+X^2-7)/(x-3)
=(X^3-3x²+3x²+X^2-7)/(x-3)
=x²+(4x²-12x+12x-7)/(x-3)
=x²+4x+(12x-36+29)/(x-3)
=x²+4x+12+29/(x-3)
=(X^3-3x²+3x²+X^2-7)/(x-3)
=x²+(4x²-12x+12x-7)/(x-3)
=x²+4x+(12x-36+29)/(x-3)
=x²+4x+12+29/(x-3)
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