Question

If x=-2 and y= √12, then 2(3x³+2y²)=

Answer 1

2%283x%5E3+%2B+2y%5E2%29

2%283%28-2%29%5E3+%2B+2%28sqrt%2812%29%29%5E2%29

2%283%28-8%29+%2B+2%2812%29%29

2%28-24+%2B+24%29

2%280%29

0

So 2%283x%5E3+%2B+2y%5E2%29=0 when x=-2 and y=sqrt%2812%29

Answer 2

0

Explanation:

The solution is in the attached file