Question

Which expressions are equivalent to x + x + x + 2?Choose 2 answers:A3.2 + 2B3 + 2x3(x + 2)2(x + 1) + xE5.2

Answer 1

Given the expression

`x+x+x+2`

It can be equivalent to the following

a) By adding the like terms, i.e

`x+x+x+2=3x+2`

b) By adding two like terms and factorizing the common factor, i.e

`\begin{gathered} x+x+x+2=2x+x+2=2x+2+x \\ \text{Factorize the above} \\ x+x+x+2=2x+2+x=2(x+1)+x \\ x+x+x+2=2(x+1)+x \end{gathered}`

Hence, the answers are A and D