Bonjour
a= [tex]\frac{6^{7=}×6^{2} }{6^{5} }[/tex]
= [tex]\frac{6^{9} }{6^{5} }[/tex]
= [tex]6^{4}[/tex]
b=[tex]\frac{11^{2} }{11^{-1} x 11^{3} }[/tex]
= [tex]\frac{11^{2} }{11^{2} }[/tex]
= 1
c= [tex]\frac{5^{6} }{25}[/tex]
= [tex]\frac{5^{6} }{5^{2} }[/tex]
= [tex]5^{4}[/tex] = 625
a= [tex]3^{2}[/tex] × [tex]4^{2}[/tex]
= [tex]12^{2}[/tex] = 144
b=25 × [tex]0.2^{2}[/tex]
= [tex]5^{2}[/tex] × [tex]5^{-2}[/tex]
= 1
c= [tex]\frac{9^{5} }{3^{6} }[/tex]
= [tex]\frac{3^{10} }{3^{6} }[/tex]
= [tex]3^{4}[/tex] = 81
a= [tex]5^{4}[/tex] × 125
= [tex]5^{4}[/tex] × [tex]5^{3}[/tex]
= [tex]5^{7}[/tex]
b= 8 × [tex]2^{5}[/tex]
= [tex]2^{3}[/tex] × [tex]2^{5}[/tex]
= [tex]2^{8}[/tex] = 256
c= [tex]3^{5}[/tex] × 9
= [tex]3^{5}[/tex] × [tex]3^{2}[/tex]
= [tex]3^{7}[/tex] = 2187
voila!
