Question

(2^-3 - 2^-4) × (2^-3 + 2^-4)

Answer 1

Answer:

3/256

Step-by-step explanation:

(a-d) *(a+b) =a2-b2

Answer 2

Answer:

1/86 is the answer.

Step-by-step explanation:

(2^-3 - 2^-4) × (2^-3 + 2^-4)

=(1/8-1/16) x (1/8+1/16)

by using the identity(a-b) x (a+b)=a^2-b^2,

=(1/8)^2-(1/16)^2

=3/256

=1/86

Hope it helps you.

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