[ .6 x .6 x .6 x .4 x .4 x .4 + 3 x .6 x .4 x (.6 + .4 )] =?

Q: [ .6 x .6 x .6 x .4 x .4 x .4 + 3 x .6 x .4 x (.6 + .4 )] =?

Given expression =(.6)3 + (.4) 3 + 3 x .6 x .4 x (.6 + .4) = a3 + b3 + 3ab (a+b) = (a+b)3 = (.6 + .4)3 = 13 = 1

21.736
2.1736
.21736
1

Correct Answer: 1

Explanation:

Given expression =(.6)³ + (.4) ³ + 3 x .6 x .4 x (.6 + .4)
= a³ + b³ + 3ab (a+b)
= (a+b)³
= (.6 + .4)³
= 1³
= 1

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