Question

Evaluate the expression:

x^2+2x−xy when x = 250 and y = −120

Answer 1

33000

Explanation:

Substituting 250 for x and -120 for y, we get:

(250)^2 + 2(250) - (250)(120) = 62500 + 500 - 30000, or

32500 + 500, or 33000