Hi Brianna,
When 25435438 is divided by 5 the remainder is 3 so 25435438 is a multiple of 5 plus 3 more. That is there is a number n so that
25435438 = 5 n + 3
When kx^{2}+3x+1 divided by (x2) the remainder is 3 so kx^{2}+3x+1 is a multiple of (x  2) plus 3 more. That is there is a polynomial p(x) so that
kx^{2}+3x+1 = (x  2) p(x) + 5
Substitute x = 2.
Penny
