Question

what is the remainder of 3x^4+2x^3-x^2+2x-19 divided by x+2

Answer 1

what is the value of the long part when x+2 = 0?

Answer 2

\[P(x)=(x-a)Q(x)+R(x)\]
\[P(a)=(a-a)Q(x)+R(a)\]
\[P(a)=0+R(a)\]

Answer 3

m just doing long division but I got a brain fart

Answer 4

hmm, show mw what youve worked out so far, i can prolly see where you might be having an issue at

Answer 5

\[\frac{P(x)}{(x-a)}=Q(x)+\frac{R(x)}{x-a}\]
if you just need the R(x), then working out the Q(x) is just alot of extra work