1. Упростите выражение: а) (3a^2b \(\cdot\) (-5a^3b)); б) ((2x^2y)^3).

a) (3a^2b \(\cdot\) (-5a^3b) = 3 \(\cdot\) (-5) \(\cdot\) a^2 \(\cdot\) a^3 \(\cdot\) b \(\cdot\) b = -15a^{2+3}b^2 = )\(\textbf{-15a^5b^2}\)

б) ((2x^2y)^3 = 2^3 \(\cdot\) (x^2)^3 \(\cdot\) y^3 = 8x^{2 \(\cdot\) 3}y^3 = )\(\textbf{8x^6y^3}\)