Algebra Flashcards
1
Q
x^2-y^2=?
A
(x+y)(x-y)
2
Q
x^2+2xy+y^2=?
A
(x+y)(x+y)
3
Q
FOIL
A
First Outer Inner Last
(a+b)(c+d)=ac+ad+bc+bd
4
Q
Speed formula
A
Speed=distance/time
5
Q
Average formula
A
Average=sum of the terms/number of terms
6
Q
Average speed formula
A
Average speed=total distance/total time
7
Q
Rate formula
A
Rate=quantity of a/quantity of b
8
Q
% increase formula
A
% increase=new amount-original amount/original amount*100%
9
Q
% decrease formula
A
% decrease= original amount-new amount/original amount*100%
10
Q
Order of operations
A
Parentheses
Exponents
Multiplication & Division
Addition & Subtraction
11
Q
x^2-2xy+y^2=?
A
(x-y)(x-y)
