Question

Evaluate each expression.

1) 3xy when x = - 1 and y = 2
2) 4(x – 3) when x = 3
3) x2 + 5x + 6 when x = - 2

Answer 1

1. -6

2. 0

3. -8

Explanation:

1. 3×(-1)×2= -6

2. 4(3-3)= 4(0)= 0

3. (-2)2+5(-2)+6= (-4)+(-10)+6= -8