Question

prove that 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.

Answer 1

Answer:

Step-by-step explanation:

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