I thought i knew how to do this, but somewhere solution bank chaged a number and im not sure why: f(x)=x^3+ax+b when it's divided by (x-4) the remainder is 32 when its divided by (X+2) the remainder is -10 Find a and b
I thought i knew how to do this, but somewhere solution bank chaged a number and im not sure why: f(x)=x^3+ax+b when it's divided by (x-4) the remainder is 32 when its divided by (X+2) the remainder is -10 Find a and b
I used the factor therom, and i solved simultaneously, for the first equation i got '4a+b=-32', which is right according to solution bank. for the second i got '-2a+b=-2', but according to solution bank it should be equal to 40?
I used the factor therom, and i solved simultaneously, for the first equation i got '4a+b=-32', which is right according to solution bank. for the second i got '-2a+b=-2', but according to solution bank it should be equal to 40?
Okay, what did you do to get that second equation then?