Сократите дробь : а) x³-xy²/x²-xy, б) 2z²-8/6z²+12z, в) 3a²-6ab+3b²/6a-6b, г)...

Question

Сократите дробь : а) x³-xy²/x²-xy, б) 2z²-8/6z²+12z, в) 3a²-6ab+3b²/6a-6b, г) an+3a/an²+6an+9a, д) p³-p/p²-p.

Answer 1

A) =x-xy
b) = 2(z^2-4)/6z(z+2) =2(z-2)+(z+2)/6z(z+2)=(z-2)/3z