# Flashcard Set Preview

Side ASide B

what is 2 x x written like?

2x

what is another way of saying divide in algebra

Quotient

Do you always have to use the x sign in algebra

No

A number x is multiplied by itself and then doubled.

x × x × 2 = x2 × 2 = 2x2

A number x is squared and then multiplied by the square of a second number, y.

x2 × y2 = x2y2

Joan has a pencil case that contains x pencils. she has three other pencils. how many pencils does joan have in total?

3+x

Theresa takes 5 chocolates from a box with a large number of chocolates in it. How many chocolates are left in the box?

Let z be the number of chocolates in the box. Theresa removes 5 chocolates, so there are z – 5 chocolates left in the box.