Tuliskan dalam bentuk eksponen positif A.b^-4:b^-3 B.a^-2 x^-3: 3x^-5 Tuliskan dalam bentuk pangkat positif A.3b^-7 B.x^-3y^2

A.
(b^-4)/(b^-3)
= b^(-4-(-3))
= b^(-4+3)
= b^-1
= 1/b

B.
(a^-2)(x^-3)/(3x^-5)
= (1/3)(a^-2)(x^(-3-(-5)))
= (1/3)(a^-2)(x^(-3+5))
= (1/3)(a^-2)(x^2)
= (1/3)(1/a^2)(x^2)
= (x^2)/(3a^2)

A. 3b^-7 = 3/(b^7)
B.x^-3 y^2 = (y^2)/(x^3)