Question

分解因式5a的平方m-15am+3abm-9bm

分解因式：5a的平方m-15am+3abm-9bm

Answer 1

5a的平方m-15am+3abm-9bm

=m(5a^2-15a+3ab-9b)
=m[5a(a-3)+3b(a-3)]
=m(a-3)(5a+3b)

Answer 2

5a²m-15am+3abm-9bm
=(5a²m-15am)+(3abm-9bm)
=5am(a-3)+3bm(a-3)
=(a-3)(5am+3bm)
=m(a-3)(5a+3b)