2x4 + 2x3 – 21x2 + 43x – 35 by x2 + 3x – 7
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— (x2 +3x -7) +5(x2 +3x -7). =(2x4+6x3-14x2)+(-4x3 -12x2+28x)+( 5x2 +15x-35). =2x4 +6x3 -4x3-14x2-12x2+5x2+28x=15x-35. =2x4 +2x3 -21x2+43x- ...
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Quotient=2x²-4x+5
Remainder=0
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