algebra Flashcards
1
Q
a+a
A
2a
2
Q
a+c
A
a+c
3
Q
xy+4xy
A
5xy
4
Q
8a+7w+2w-3a
A
5a+9w
5
Q
expanding quadratics
A
(x+5) (x+2)
times what’s in both brackets together to get
x2+7x+10
6
Q
factorising quadratics
A
example:
x2+8x+15
find 2 numbers that multiply to get 15 and add to get 8
=3 and 5
7
Q
when you multiply a positive and negative
A
= negative
