I'm stuck with this equation, please do help

[MethMath11]

i tried the
residual theorem (not sure bout the name, but we call it teorima sisa)

 

[Deleted member 4993]

i tried the residual theorem (not sure bout the name, but we call it teorima sisa)

Please show us your work with residual theorem - and show us the result (even if it is wrong/incomplete).

 

[HallsofIvy]

Are you sure it wasn't "f(1)- f(-3)"?

 

[MethMath11]

Please show us your work with residual theorem - and show us the result (even if it is wrong/incomplete).

f(x) = ((x^2) + 2x - 3).h(x) +(Ax + B)

f(1) = (1 + 2 -3)H(x)+ A +B
f(3) =(9 + 6 -3) h(x) + 3A + B

A + B - (12(h(x) + 3A + B) = 4

How to eliminate H(x)?

 

[Deleted member 4993]

f(x) = ((x^2) + 2x - 3).h(x) +(Ax + B)

f(1) = (1 + 2 -3)H(x)+ A +B
f(3) =(9 + 6 -3) h(x) + 3A + B

A + B - (12(h(x) + 3A + B) = 4

How to eliminate H(x)?

You need to be more careful! How did h(x) turn out to H(x)?

 

[Dr.Peterson]

f(x) = ((x^2) + 2x - 3).h(x) +(Ax + B)

f(1) = (1 + 2 -3)H(x)+ A +B
f(3) =(9 + 6 -3) h(x) + 3A + B

A + B - (12(h(x) + 3A + B) = 4

How to eliminate H(x)?

I think this is HallsofIvy's point: the question can't be answered as it stands, but if 3 had been -3, it could. Give that a try.

It looks like an error in the problem.