Rewrite $10^{-10}\times10^4$10−10×104 in the form $a^n$an.
Rewrite $3^{-6}\times3^{-7}$3−6×3−7 in the form $a^n$an.
Evaluate the following expression: $5^2\times5^{-4}$52×5−4.
Evaluate $2^{-2}\times2^{-2}$2−2×2−2.
Recall of laws of exponents with integral powers. Rational exponents with positive real bases