Упростите:::::::::::
1/2ab²+7/12bab-3/4b²a+b5/6ab=(1/2+7/12-3/4+5/6)*ab*b=7/6ab²
16x^5y^4zxxz^4+14xyz^4xx^5y²zy-7x^7yz²yz²yyz=(16+14-7)x^5x*x*xy*y*y*yz²*z²*z=
=23x^5*x*xy*y*y*yz²*z²*z=23x^7y^4z^5
^ это степень