Mathsercise-C Ready? Expressions 2 Here we go!

Remember 1d is written as d Simplify the expressions…… i) x Question 2 + y + x + y + x 3x + 2y ii) 4d + 5e – 3d – 2e Answer Remember 1d is written as d d + 3e 1 Expressions 2

Multiply out the brackets first! Expand and simplify…… Question 3 2(4a + 2) – 3(2a – 4) 8a + 4 – 6a + 12 Answer 2a + 16 Notice that this sign has changed to a +, because of the – outside of the brackets 2 Expressions 2

3 Simplify…… i) r2 + r2 + r2 3r2 ii) 3q2 - q2 2q2 Question 4 Remember, this means 1q2! Answer ii) 3q2 - q2 2q2 3 Expressions 2

Notice how the powers have changed! Simplify…… Notice how the powers have changed! i) 3a2b x 7ab3 Start 21a3b4 ii) (x + 2) ii) (x + 2)2 (x + 2) Answer (x + 2) (x + 2) 4 Expressions 2