初二的数学因式分解题
(-2x²y³)³(xy)³
(2a+3b)(2a-b)
5x²(x+1)(x-1)
(2x+y-1)²
59.8×60.2
198²
﹙2a﹚³b的四次方÷12a³b²
(-2/3a的七次方b的五次方)÷3/2a²b五次方
(6/5a³x³x¹-0.9ax³)÷3/5ax³
(7x²y³-8x³y³z)÷8x²y²