Question

if x+1 is the factor of 2x3+ax2+2bx+1, then find the value of a and b given that 2a-3b=4

Answer 1

I think ..
By putting x=-1
We get
2a+2b=-5
given
2a-3b=4
2a=4+3b
now,
4+3b+2b=-5

[b=-9/5]

and

[a=-14/5]