Question

16. What is the value of the expression (x + 5)(2y - 1) when x = 1 and y=-1?

A-18
B. -10
C.-6.
D. 6

Answer 1

A

Explanation:

If you sub in all the values, you get [1+5][2(-1)-1]. Now combine like terms. 1+5 is 6 and 2*-1-1=-3. 6*-3=-18 so the answer is A.