Question

using identity find
right and perfect answer will be marked brainlist​

Answer 1

Step-by-step explanation:

Let a= -7, b= 5, c=2

using identity,a^3 + b^3 + c^3= (a+b+c)^3 - 3 (a+b) (b+c) (c+a)

Applying all values.. In the second part

=(-7+5+2)^3 -3(7+5) (5+2) (2+7)

=(0) ^3 - 3 (12) (7) (9)

=-2268

I don't know whether it's correct or not but it may help you. You can correct me..