Divide
x3 + 2x² +6x-20 by x-1
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Step-by-step explanation:
x³+2x²+6x-20
= x³-x²+3x²-3x +9x-9 -11
= x²(x-1)+3x(x-1)+9(x,-1)-11
= (x-1) ( x²+3x+9) -11
= divisor×quotient + remainder
=> quotient = x²+3x+9
=> remainder= - 11
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