Question

2 mũ 10 . 13 + 2 mũ 10 .65

2 mũ 8 . 104

Answer 1

2¹⁰x13+2¹⁰x65

=2¹⁰x(13+65)

=2¹⁰x78

=79872

Answer 2

a) = 2\(^{10}\).( 13+65)

=2\(^{10}\). 78

=64.78

=4992

b) =256.104

=26624

Answer 3

\(\frac{2^{10}.13+2^{10}.65}{2^8.104}\) = \(\frac{2^{10}.\left(13+65\right)}{2^8.2^3.13}\) 

= \(\frac{2^{10}.78}{2^{11}.13}\) = \(\frac{2^{10}.2.3.13}{2^{11}.13}=\frac{2^{11}.3.13}{2^{11}.13}=3\)