Question

if the value of polynomial (m^3+2m+a) is 12 for m = 2, find the value of a​

Answer 1

Step-by-step explanation:

Given,

$(m^{3}+ 2m+ a) = 12$

Also, given m=2'

By putting the value,

$(2^{3}+ 2*2+ a) = 12\\=> 8+4+ a = 12\\=> 12 + a=12\\=> a=12-12\\=> a = 0$

Hence the value of a= 0 (Ans)