Question

simplify:
$(2^{ - 3} - {2}^{ - 4} )( {2}^{ - 3} + {2}^{ - 4} )$
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Answer 1

(2^-3 - 2^-4)(2^-3 + 2^-4)

2^-6 - 2^-8

2^-6( 1 - 1/4)

3/4 *2^-6

0.75*10^-6

Answer 2

Step-by-step explanation:

$(2^{ - 3} - {2}^{ - 4} )( {2}^{ - 3} + {2}^{ - 4} )$

$2^{-6} - 2^{-8}$

$2^{-6} ( 1 - \frac{1}{4} )$

$\frac{3}{4} × 2^{-6}$

$0.75 × 10^{-6}$