Chapter 2 Expressions

Question 1

Can 4x/4y+1 be simplified?

Answer 1

No since the denominator itself isn’t a common factor

Question 2

Can 4(x+1)/x+1 be simplified?

Answer 2

Yes because the denominator itself is a common factor

Question 3

What is (a+b)^2

Answer 3

A^2+2ab+b^2

Question 4

What is (a-b)^2?

Answer 4

a^2-2ab+b^2

Question 5

What is a^2-b^2?

Answer 5

(A+b)(a-b)

Question 6

When there is a fraction a/b in the denominator, what do we flip a and b into? C/a/b

Answer 6

Bc/a

Question 7

When there is a fraction a/b in the numerator, where do an and b go? A/b/c

Answer 7

A and b remain where they are in order. A/bc

Question 8

When can you split up fractions? Ex. 30+c/6 or 30/c+6

Answer 8

You can only split up the numerators of fractions if it’s in numerator not denominator. 30+c/6— 30/6+c/6