Question

Using suitable identity evaluate the following: (i)15^3 + (-10)^3 + (-5)^3​

Answer 1

15³+(-10)³+(-5)³

If x+y+z=0,then x³+y³+z³=3xyz

15+(-10)+(-5)=0

Then,

3×15×(-10)×(-5)=2250

Thus,the answer is 2250

Answer 2

Answer:

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