Question

If the value of the polynomial m3 + 2m+ a is 12 fro m=2 , then find the Value of a​

Answer 1

Answer:

a=0

Step-by-step explanation:

According to problem

${m}^{3} + 2m + a = 12 \\ {2}^{3} + 2 \times 2 + a = 12 \\ 8 + 4 + a = 12 \\ a = 12 - 8 - 4 \\ a = 0$

Hope it helps you.

Answer 2

Step-by-step explanation:

m3+2m+a=12

m=2.

(2)3+2(2)+a=12

8+4+a=12

12+a=12

a=12-12

a=0