Question

find the product(p+q+r) (p-r)
in long please ​

Answer 1

Answer:

$p (p - r) + q(p - r) + r(p - r) \\ {p }^{2} - pr + qp - qr + rp + {r}^{2} \\ = {p}^{2} - {r}^{2} + qp$-qr

I hope it is correct

Answer 2

Answer:

p square + qp + pr -pr - qr - r square