Question

p^3(q^3-r^3)+q^3(p^3-r^3)+r^3(p^3-q^3) can someone please help me with this

Answer 1

Hey Mate
here is your answer.............


${p}^{3} ( {q}^{3} - {r}^{3} ) + {q}^{3} ( {p}^{3} - {r}^{3} ) + {r}^{3} ( {p}^{3} - {q}^{3} ) \\ \\ = {p}^{3} {q}^{3} - {p}^{3} {r}^{3} + {q}^{3} {p}^{3} - {q}^{3} {r}^{3} + {r}^{3} {p}^{3} - {r}^{3} {q}^{3} \\ \\ = ( {p}^{3} {q}^{3} + {p}^{3} {q}^{3} ) + ( { - p}^{3} {r}^{3} + {p}^{3} {r}^{3} ) + ( { - q}^{3} {r}^{3} { - q}^{3} {r}^{3} ) \\ \\ = 2 {p}^{3} {q}^{3} - 2 {q}^{3} {r}^{3}$

Answer 2

The answer is 2p^3q^3-2q^3r^3.............