Question

Пожалуйста даю 45 балов ​

Answer 1

$3a^2b*ab^4=3a^2b^1a^1b^4=3a^3b^5\\ otvet A\\\\\frac{3^3*3^{11} }{3^{12} } =\frac{3^{14} }{3^{12} } =3^2=9 \\ otvet G\\\\-2(x-2y)-3x=-2x+4y-3x=-5x+4y\\otvetA\\\\(c^2)^3+c^5=c^6+c^5=c \\c^7*c^3:c^-8=c^7-c^3*c^-8=c^2\\c^{10} +(-c^5)^2=c^{10} :(c^5)^2=c^{10} +c^{10} =1\\(-c^2)^3:(c^2)^2=-(c^2)^3:c^4=-c^6:c^4=-c^2$