(.58 x .58 x .58 - .42 x .42 x .42 - 3 x .58 x .42 x .16) =?
Correct Answer: 0.004096
Explanation:
Given Expression = (.53)3 - (.42)3- 3 x .58 x .42 x (.58-.42)
= a3-b3 -3ab(a - b)
= (a - b)3 (where a = .58 and b=.42)
= (.58 - .42 )3
= .16 x .16 x .16
= 0.004096
