Question

1.
f(x) = 2x^3 +3.x^2+ mx + 6 then the value of m
If (x + 1) is a factor of the polynomial 2x^3 +3.x^2+ mx + 6
(A) 7
(B)-5
(C) - 7
(D) 5​

Answer 1

here is your answer of this question

Answer is A(7)

Answer 2

Answer:

x+1 is a factor. then, it satisfy the equation &make it equal to zero

x+1=0

x=-1

put this value in equation,&solve

2(-1) ^3+3(-1) ^2+m(-1) +6=0

-2+3-m+6=0

7-m=0

m=7