Question

x=3 Find the value of the polynomial 2x-2x³+7 using given values for x

Answer 1

Hello!

Here is your answer!
$given \: x = 3 \\ \\ = 2 \times 3 - 2 \times (3) {}^{3} + 7 \\ \\ = 6 - 2 \times 27 + 7 \\ \\ = 6 - 54+ 7 \\ \\ = - 41$





Hope it helps you!!

Answer 2

$\huge {\blue {\bold {HELLO \:\: ...!!!}}}$

$\large {\red {\bold {Here \: is \: your \: answer }}}$

Given :
2x - 2x^3 + 7, but x = 3.
Therefore,
2 (3) - 2 (3)^3 + 7
= 6 - 2 × 27 + 7
= 13 - 54 = -41

$\large {\red {\bold {Hope \: It \: Helps}}}$