Question

Decide if the expressions in each pair are equivalent. Explain how you know.

x + x + x + x and 4x


5x and x + 5

Answer 1

20x²+5x+5

Explanation:

any more help just ask

Answer 2

The first expression is true because x+x+x+x= 4x. It is like addition but with a variable. The second isn’t true because 5x= x+x+x+x+x whereas x+5 is x plus five. Not 5x. Hope this helps.