Question

what is the value of the polynomial 4x
$4x ^{3} + 7x ^{2} + x - 2$
when x = -1
please answer fast
​

Answer 1

Given : $\boxed{ \sf{x = - 1}}$

To find : $\boxed{ \small\sf {4x}^{3} + {7x}^{2} + x - 2 = \:?}$

$\huge\underline{\underline{\mathbb{SOLUTION : }}}</p><p>$

$\bf = > {4x}^{3} + {7x}^{2} + x - 2 \\ \bf = > {4( - 1)}^{3} + {7( - 1)}^{2} + ( - 1) - 2 \\ \bf = > 4( - 1) + 7(1) - 1 - 2 \\ \bf = > - 4 + 7 - 3 \: \: \: \: \\ \bf = > - 7 + 7 \: \: \: \: = 0$

Hence,

• It is found that the value of the polynomial p(x) = 4x³ + 7x² + x - 2 at x = -1 is 0.

• Thus, It can be stated that (x + 1) is a factor of p(x) = 4x³ + 7x² + x - 2

$<marquee>MARK BRAINLIEST↖↖$