Question

Simplify:
1. p²(q²-r²)+q²(r²-p²)+r²(p²-q²)

Answer 1

Answer:

The answer of the following equation is 0.

Answer 2

Answer:

0

Step-by-step explanation:

p²(q²-r²) + q²(r²-p²) + r²(p²-q²)

= p²q² - p²r² + q²r² - q²p² + p²r² - q²r²

After cancelling opposite terms, we get 0.