Simplify following and write the answers with only positive exponents.
(a) ( x8.2 y -0.26 z 2 )0.5
(b) (x3 y -4.1 / x-2.7 )-3
Solution
(a) (x8.2 y -0.26 z 2 )0.5 = x4.1 y0.13 z =( x4.1 z /y -0.13 )
(b)
(x3 y -4.1 / x-2.7 )-3= x3 x2.7 /y 4.1 =( x5.7 / y 4.1 )-3 =( y 4.1 / x5.7)3= y12.3/ x17.1