MATHS IDENTITIES Flashcards
1
Q
(a+b)²
A
a²+b²+2ab
2
Q
(a-b)²
A
a²-2ab+b²
3
Q
a²-b²
A
(a+b) (a-b)
4
Q
(a+b+c)²
A
a²+b²+c²+2ab+2bc+2ca
5
Q
a³+b³
A
(a+b) (a²-ab+b²)
6
Q
a³-b³
A
(a-b) (a²+ab+b²)
7
Q
(a-b)³
A
a³-b³-3ab(a-b)
8
Q
(a+b)³
A
a³+b³+3ab(a+b)
