Упростите выражение: a) 2a^5b^2 * ba^3; b) (-0.1x^3)^4 * 100x; c) (2/5ab^2)^3 * 5/2a^3b^2.

4. a) 2a^5b^2 * ba^3 = 2a^(5+3)b^(2+1) = 2a^8b^3; b) (-0.1x^3)^4 * 100x = 0.0001x^12 * 100x = 0.01x^13; c) (2/5ab^2)^3 * 5/2a^3b^2 = (8/125)a^3b^6 * 5/2a^3b^2 = 20/250a^(3+3)b^(6+2) = 4/50a^6b^8.