Answer:
4. In order to simplify expressions with negative exponents, we make the negative exponents positive by implying the negative exponent rule:
[tex] \frac{ {a}^{8} {a}^{3} {b}^{-2} }{ {a}^{ - 1} {b}^{ - 5} } = \frac{ {a}^{8} {a}^{3} {ab}^{5} }{ {b}^{2} } = \frac{ {a}^{12} {b}^{5} }{ {b}^{2} } = {a}^{12} {b}^{3} [/tex]
