Question

0.87 x 0.87 x 0.87 +0.13 x 0.13 x 0.13
0.87 x 0.87 - 0.87 x 0.13 +0.13 x 0.13
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Answer 1

The answer for the first is 0.658503 + 0.002197=0.6607

The answer for the second is 0.002197

HOPE IT HELPS !!

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Answer 2

1) 0.87 × 0.87 × 0.87 + 0.13 × 0.13 × 0.13

0.658503 + 0.002197

= 0.6607

2) 0.87 × 0.87 - 0.87 × 0.13 + 0.13 × 0.13

0.7569 - 0.1131 + 0.0169

= 0.6607

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