0.85×0.85×0.85+0.15×0.15×0.15/0.85×0.85-0.85×0.15+0.15×0.15=1
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a=0.85
b=0.15
a³+b³/a²-ab+b²
(a+b)(a²-ab+b²)/(a²-ab+b²)
substitute
(a+b)=(0.85+0.15)=1
b=0.15
a³+b³/a²-ab+b²
(a+b)(a²-ab+b²)/(a²-ab+b²)
substitute
(a+b)=(0.85+0.15)=1
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