Question

Prove that:
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
=1​

Answer 1

Step-by-step explanation:

is this ques right

I mean i think there is some typing mistake.....

Answer 2

Answer:

Here is your ☝☝☝

Hope this helps you ☝✌✌