JEE MATHEMATICS MCQ: THEORY OF EQUATION

1 Easy

1 of 1

Application +4 | -1

x^2+x+1

is a factor of

a x^3+b x^2+c x+d

, the real root of

a x^3+b x^2+c x+d=0

View answer and explanation

Correct option: A

-\frac{d}{a}

Option A (-d/a) is correct because if

x^2+x+1

is a factor, then the remaining factor must be linear, and the real root is found by considering the product of the roots.

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