a)
18x³*14b/(7b⁴*9x²)=4x/b³
б)
(9х*5b³)/(10b²*3x³)=3b/2x²
в)
2*2(3a-b)/((3a-b)*(3a+b))=4/(3a+b);
г)
3*5(a+2b)/((a+2b)*(a-2b))=15/(a-2b)
и)
-с²(с+7)*4b²/(2b*((с+7)*(-с+7))=-2c²b/(7-c)=2bc²/(c-7)
д)
(-2а⁴/3b²)³=-8a¹²/27b⁶
е)
(-3a⁵/4b³)²=9a¹⁰/(16b⁶)
ж)
((х³-16х)/(3ху))*(6у/(2х+8))=(х*(х-4)*(х+4)*6у)/(3ху*(2*(х+4))=(х-4)
з)
4ху*2*(х-5)*(х+5)/((х*(х-5)*8у)=(х+5)
к)
-((с²-36)*3b²)/(c*(6+c)(9b³))=(6-c)*(6+c)/(3bc*(6+c))=(6-c)/(3bc)