On dividing $x^{3}-3 x^{2}+x+2$ by a polynomial $g(x)$,the quotient and remainder were $x-2$ and $-2 x+4$,respectively. Find $g(x)$.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) Given:
Dividend $p(x) = x^{3}-3 x^{2}+x+2$
Quotient $q(x) = x-2$
Remainder $r(x) = -2 x+4$
Divisor $g(x) = ?$
Using the division algorithm for polynomials:
$p(x) = g(x) \cdot q(x) + r(x)$
$x^{3}-3 x^{2}+x+2 = g(x) \cdot (x-2) + (-2 x+4)$
Rearranging the terms to isolate $g(x) \cdot (x-2)$:
$g(x) \cdot (x-2) = (x^{3}-3 x^{2}+x+2) - (-2 x+4)$
$g(x) \cdot (x-2) = x^{3}-3 x^{2}+x+2+2 x-4$
$g(x) \cdot (x-2) = x^{3}-3 x^{2}+3 x-2$
Now,divide $(x^{3}-3 x^{2}+3 x-2)$ by $(x-2)$ to find $g(x)$:
By performing polynomial long division:
$(x^{3}-3 x^{2}+3 x-2) \div (x-2) = x^{2}-x+1$
Therefore,$g(x) = x^{2}-x+1$.

Explore More

Similar Questions

Divide the polynomial $p(x)$ by the polynomial $g(x)$ and find the quotient and remainder in each of the following:
$p(x) = x^{4} - 5x + 6, \quad g(x) = 2 - x^{2}$

Difficult
View Solution

Given that $x-\sqrt{5}$ is a factor of the cubic polynomial $x^{3}-3 \sqrt{5} x^{2}+13 x-3 \sqrt{5}$. Find all the zeroes of the polynomial.

What must be subtracted from $8x^4 + 14x^3 - 2x^2 + 8x - 12$ so that the resulting polynomial is exactly divisible by $4x^2 + 3x - 2$?

Difficult
View Solution

Divide $x^{3}-6x^{2}+11x-6$ by $x^{2}-8x+27$.

Difficult
View Solution

If zero is inserted between the two digits of a two-digit number whose unit's place is $y$ and ten's place is $x$,then the new number is $\ldots \ldots \ldots \ldots$

Difficult
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo