Question

4.if the value of the polynomial m3+2m+a is 12 for m=2,thenfind value of a. ​

Answer 1

Answer:

a=2

Step-by-step explanation:

3m + 2m + a = 12 for m=2

then

3x2 + 2x2 + a = 12

6 + 4 + a = 12

10 + a = 12

a = 12 - 10

a = 2

Answer 2

Step-by-step explanation:

m^3+2m+a=12

Putting the value of m=2, we get,

=>2^3+2×2+a=12

=>8+4+a=12

=>12+a=12

=>a=0