Question

If p=-4 and q=5 evaluate the following:

pq-(p-q)
= -11
p^2+3q​

Answer 1

pq - (p-q) = -11 checked

Explanation:

p= -4, q = 5,

pq= -20, p-q = (-4) - 5 = -9

pq - (p-q) = -20 - (-9) -20 +9 = -11