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Polynomials — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSPolynomials1 Mark
Question
$(x + 1)$ is a factor of the polynomial:
✓

Answer

Given, $x^3 + 2x^2 - x - 2$
$For f(-1),$
$-1 + 2(-1)^2 - (-1) - 2$
$-1 + 2 -1 - 2 = 0$
$x = -1,$
$x + 1 = 0$
So$, (x + 1)$ is a factor of the polynomial $x^3 + 2x^2 - x – 2$

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