a)75b^5*c^3/50b^4*c^4=3b/2c;
б) 7a/(a^2+5a)=7a/a(a+5)=7/(a+5)
в) (y^2-z^2)/(2y+2z)=(y-z)(y+z)/2(y+z)=(y-z)/2
а
75/50*b^5/b^4*c^3/c^4=3b/2c
б
7a/a(a+5)=7/a+5
в
(y-z)(y+z)/2(y+z)=y-z/2
a)75b^5*c^3/50b^4*c^4=3b/2c;
б) 7a/(a^2+5a)=7a/a(a+5)=7/(a+5)
в) (y^2-z^2)/(2y+2z)=(y-z)(y+z)/2(y+z)=(y-z)/2
а
75/50*b^5/b^4*c^3/c^4=3b/2c
б
7a/a(a+5)=7/a+5
в
(y-z)(y+z)/2(y+z)=y-z/2