wat is help sheet, didn't help,
instructions unclear, got my calculator stuck in the ceiling fan
remember some simple exponential laws
\(( x^{n} )(x^{m})=x^{n+m}\) and
\(\frac{x^{n}}{x^{m}} =x^{ n-m }\)
\(x^{-m}= \frac{1}{x^{m}}\)
first one
\((2^{-6})(2^{3})=2^{-6+3}=2^{-3}= \frac{1}{2^{3}} = \frac{1}{8}\)
2nd one
\(\frac{7^{5}}{7^{3}} =7^{ 5-3 } = 7^{2} = 49\)
third one
\((3^{-4})(3^{2})=3^{-4+2}=3^{-2}= \frac{1}{3^{2}} = \frac{1}{9}\)
dunno wat to do with 'help sheet'
