Question

What is the value of the expression below when a = -2, b = 3, C = -5

[a– 2ac + 56]

Answer 1

34

Explanation:

plug the coefficients in the equation, so

-2-2(-2)(-5)+56

Distribute the -2(-2)(-5), so it equals -20

so the equation is -2-20+56

add -20+56, so -2+36

-2+36=34

34 is your answer