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Question

Divide first polynomial by second polynomial and write the answer in the form ‘Dividend = Divisor × Quotient + Remainder’.

(i) x3 - 64 ; x - 4 (ii) 5x5 + 4x4 - 3x3 + 2x2 + 2 ; x2 - x

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Solution

(i)
x3-64=x3+0x2+0x-64

Using long division method,


Dividend = Divisor ×​ Quotient + Remainder

x3-64=x-4×x2+4x+16+0

(ii)
5x5+4x4-3x3+2x2 +2=5x5+4x4-3x3+2x2 +0x+2

Using long division method,


Dividend = Divisor ×​ Quotient + Remainder

5x5+4x4-3x3+2x2+2=x2-x×5x3+9x2+6x+8+8x+2

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