Question

Which expressions are equivalent to q+p+q+p+q

a. 2p+3q

b. 2(p+q)+q

c. none of the above

Answer 1

Let's see

• q+p+q+p+q

Combine like terms

• q+q+q+p+p
• 3q+2p

2(p+q)+q is only correct

Answer 2

Which expressions are equivalent to q+p+q+p+q

a. 2p+3q

b. 2(p+q)+q

c. none of the above