Question

Explain and correct the error made by a student who simplified this expression.

–2 + 7(x + 8)
5(x + 8)
5x + 40

Answer 1

7x+54

Explanation:

because you distribute the 7 to the x and the 8 first then you bring that down which becomes 7x+56 then you to the addition so you do 56+-2 which would give you 54.