Question

Batu jawab yaaa...... :v

Answer 1

3.
Jika p = -1, q = 1, r = -2

A.
2p - 3q + 4pq - r
= 2(-1) - 3(1) + 4(-1)(1) - (-2)
= -2 - 3 - 4 + 2f
= -7



B.
pq^2 - p^2 + q - r^2
= (-1)(1)^2 - (-1)^2 + (1) - (-2)^2
= 1 - 1 + 1 - 4
= -3