Chapter 2 Expressions Flashcards
1
Q
Can 4x/4y+1 be simplified?
A
No since the denominator itself isn’t a common factor
2
Q
Can 4(x+1)/x+1 be simplified?
A
Yes because the denominator itself is a common factor
3
Q
What is (a+b)^2
A
A^2+2ab+b^2
4
Q
What is (a-b)^2?
A
a^2-2ab+b^2
5
Q
What is a^2-b^2?
A
(A+b)(a-b)
6
Q
When there is a fraction a/b in the denominator, what do we flip a and b into? C/a/b
A
Bc/a
7
Q
When there is a fraction a/b in the numerator, where do an and b go? A/b/c
A
A and b remain where they are in order. A/bc
8
Q
When can you split up fractions? Ex. 30+c/6 or 30/c+6
A
You can only split up the numerators of fractions if it’s in numerator not denominator. 30+c/6— 30/6+c/6
