Question

Fend the value of the polynomial 4x² -8,
where x=2,
​

Answer 1

$4x^2 -8$

$=4\cdot 2^2\:-8$

$=4\cdot \:4-8$

$=16-8$

$=8$

Answer 2

Answer:

the value of the polynomial 4x² -8 is 8

Step-by-step explanation:

4x² - 8

sub x=2

4(2)²- 8

= 4×4 - 8

= 16 - 8

= 8

Hope this answer be helpful