Question

Y = p2 +qr Find y when p = –5, q = 3 and r = –7.

Answer 1

The answer is -31 because y=(-5)(2) + (3)(-7)

Answer 2

y = -31

Explanation:

y = p2 + qr

"knowns"

p = -5

q = 3

r = -7

Therefore we can plug in the "knowns"

y = (-5)2 + (3)(-7)

After simplifying,

y = -10 - 21 = -31