Question

Find the value of polynomial P(x)=2x-2x³+7 when x=-2

Answer 1

Answer:

Step-by-step explanation:

Its easy bro...

Answer 2

Answer:

$p(x) = 2x - 2x {}^{3} + 7 \: \: (given)$

$if \: x = - 2$

$p( - 2) = 2( - 2) - 2( - 2) {}^{3} + 7 \\ = - 4 + 16 + 7 \\ = 19$

Therefore, the value of x is equal to 19

Hope it helps you...