Question

aˇ3+aˇ2b-abˇ3-bˇ3因式分解

Answer 1

a³+a²b-ab³-b³
＝a²(a+b)-b²(a+b)
=(a²-b²)(a+b)
=(a+b)²(a-b)

Answer 2

aˇ3+aˇ2b-abˇ3-bˇ2
=a^2(a+b)-b^2(a+b)
=(a+b)(a^2-b^2)
=(a+b)(a+b)(a-b)
=(a+b)^2(a-b)