expansion laws
zero index laws
distributive law
simplifying expression
factorising expression
100
1(9+5m)
=9+5m
100
2^0
=1
100
a(b+c)
ab+ac
100
simplify:5a+a+3a
9a
100
factorise 6a+12
6(a+2)
200
7(4+8h)
=28+56h
200
3^0
=1
200
a(b+d)
=ab+ad
200
12a+7b+9a+7b
=21a+14b
200
what is the HCF of 10a and 20a^2?
10a
300
6(6+3a)
=36+18a
300
4^0
=1
300
e(s+a)
= es+ea
300
7a+4b+8a+7b+6a+8b
=21a+19b
300
factorise 7a + 21b
7(a+3b)
400
4(1+2L)
=4+8L
400
10^0
=1
400
w(a+e)
=wa+we
400
33a+77b+44b
=33a+121b
400
factorise 81 + 18a
9(9+2a)
500
10(20+70x)
=20+70x
500
7^0
=1
500
t(m+o)
=tm+to
500
600b+8000a+721b+671a
=80671a+1321b
500
factorise 20a^2 + 5a
5a(4a+1)
M
e
n
u