c^3 2c^2 -4c 0 __________________________________________________ 9c | 9c^4 18c^3 -36c^2 0c -81 | | 9c^4 ------- 0 18c^3 18c^3 -------- 0 -36c^2 -36c^2 -------- 0 0c 0c ----- 0 -81 remainder
FACTOR out GCF, 9c in numerator and denominator, so: