# MPM2D 2015-09-18 – Simplifying Expressions Quiz

Here is the quiz from yesterday:

Simplifying Expressions Quiz

Simplifying Expressions Quiz – Solutions

Common mistakes:

• forgetting to use equals signs
• not being careful to match exponents (e.g. $xy^2 \neq x^2y^2$)
• issues with terms that summed to zero (e.g. $-xy^ + xy^2 = 0$)