Question

( left(-frac{3}{4}right)^{3} timesleft[frac{3^{-3}}{4^{-2}}-left(frac{2}{3}right)^{-3}right] )
( =left(frac{-3)^{3}}{left(2^{2}right)^{3}} timesleft[frac{left(2^{2}right)^{2}}{3^{3}}-frac{2^{3}}{3^{3}}right.right. )
( =frac{(-3)^{3}}{2^{6}} timesleft[frac{2^{4}-2^{3}}{3^{3}}right) )
( =frac{(-3)^{8}}{x^{6}} times frac{2^{3}}{3^{3}} )
( =frac{-1}{2^{3}} )

# 8. Simplify: a)(17) 2- b) (4)--) 9. Express the following into single exponential form

Solution