How do you use the remainder theorem to find the remainder for the division (x4+5x314x2)÷(x2)?

1 Answer
Sep 8, 2016

f(2)=0 There is no remainder.
x2 is a factor.

Explanation:

If we have f(x)=x4+5x314x2

Let x2=0x=2

The remainder of x4+5x314x2÷(x2)
is found from f(2)

f(2)=24+5(2)314(2)2

=16+4056=0

The fact that the remainder is 0, (ie there is no remainder), means that (x2) is a factor of x4+5x314x2