Question

aduceti la forma cea mai simpla

$\frac{a-b}{4b ^{3} }$ *$\frac{2b ^{4} }{a -ab^{2} }$

Answer 1

=2b⁴(a-b)/4b³a(1-b²)= simplificam cu 2b³
=b(a-b)/2a(1-b²)