Algebra Flashcards
1
Q
Multiplication of binomials, EWE (each with each)
A
2
Q
Square of sum
A
(a + b)2 = a2 + 2ab + b2
3
Q
Square of difference
A
(a – b)2 = a2 – 2ab + b2
4
Q
Cube of sum
A
(a + b)3 = a3 + 3a2b + 3ab2 + b3
5
Q
Cube of difference
A
(a – b)3 = a3 – 3a2b + 3ab2 – b3
6
Q
Difference of squares
A
a2 – b2 = (a + b) (a – b)
7
Q
Absolute value of |-a|
A
|a|
8
Q
Absolute value of |ab|
A
|a| |b|
9
Q
Absolute value of |a/b|
A
|a| / |b|
b ≠ 0
10
Q
A
11
Q
Distance between points a and b on a number line
A
|b – a| = |a – b|
12
Q
am/n
A
n√am
13
Q
A
14
Q
A
(b ≠ 0)
15
Q
A