Question

find the value of given polynomial at x=-1 if p(x)=xcube-5xsquare+7x+2/3​

Answer 1

Answer:

-22/3

Step-by-step explanation:

x = -1

$p(x) = {x}^{3} + 7x + \frac{2}{3}$

$p( - 1) = { - 1}^{3} + 7( - 1) + \frac{2}{3}$

$p(-1) = - 1 - 7 + \frac{2}{3}$

$p( - 1) = - 3 - 21 + 2 \div 3$

= -24+2 ÷ 3 = -22/3