Question

como que resolve essas propriedades?

Answer 1

$2^{-2}*2^{-3}=2^{(-2)+(-3)}=2^{-5}\\ \\ (2*7)^2=2^2*7^2=4*28=112\\ \\ (\frac{1}{4}*\frac{1}{3})^2=(\frac{1}{4})^2*(\frac{1}{3})^2=\frac{1}{8}*\frac{1}{25}=\frac{1}{200}\\ \\ (11^6 \div11)^2=(11^4)^2=11^8$