What is the remainder of \(2 x^3-5 x^2+7\) when divided with \((x-2)\) ?

What is the remainder of \(2 x^3-5 x^2+7\) when divided with \((x-2)\) ?
  1. -3
  2. -2
  3. 3
  4. 2

Solution

Using remainder theorem, remainder is \(P(x=2)\). So, remainder is, \(\begin{aligned} P(x=2) & =2 \times 2^3-5 \times 2^2+7 \\ & =16-20+7 \\ & =3 \end{aligned}\)

Asked in: AP EAMCET 2020 (17 Sep Shift 2)

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