Question

2 to the power 40 + 2 to ths power 39 + 2 to the power 38 divided by 2 to the power 41+ 2 to the power 40 - 2 to the power 39

Answer 1

Answer:

Step-by-step explanation:

=2^40+2^39+2^38/2^41+2^40-2^39

=2^38(2²+2+1)/2^38(2^3+2²-2)

2^0=1 and 2^1=2

cancel both  2^38 we get

=2²+2+1/2^3+2²-1

=4+2+1/8+4-2

=7/10