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Find the quotient and the remainder when f(x) = x^4 – 3x^2 + 4x + 5 is divided by g(x) = x^2 – x + 1.

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Question

Find the quotient and the remainder when f(x) = x4 – 3x2 + 4x + 5 is divided by g(x) = x2 – x + 1.

Sum
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Solution

                              x2 + x – 3
 `x^2 - x + 1")"overline(x^4 + 0x^3 - 3x^2 + 4x + 5)`
                     x4  –   x3 + x2
                                                –    +    –  
                      x3 – 4x2 + 4x + 5
                      x3 –   x2 +   x
                       –     +         –                     
                            –3x2 + 3x + 5
                            –3x2 + 3x – 3
                           +       –      +                   
                                             8                  

Quotient q(x) = x2 + x – 3

Remainder r(x) = 8

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Chapter 2: Polynomials - EXERCISE 2B [Page 63]

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R.S. Aggarwal Mathematics [English] Class 10
Chapter 2 Polynomials
EXERCISE 2B | Q 7. | Page 63
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