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Ratios are a way of comparing the amount of two things in a whole. In this case we are comparing the number of men and women in a football match, so, the total number of people at the match is equal to th...

Rearrange the terms and group: Numbers: (3*1) =3, a variables: a * (a^3) --> (1+3=4) Therefore (a^4); b variables: (b^2)*b --> (2+1=3) Therefore (b^3); Regroup: 3(a^4)(b^3)

3x+7 = 1. We can describe this equation as a stroy. First x was multiplied by 3 and then 7 was added to it to get 1. Now we need to reverse the story. 
last thing done was +7, so reversing it gives ...

(x-5)(x-3)=0

x-5=0 x-3=0

x=5 x=3

Use the moon method.

E.g. (x+1)(x+2) 

1. multiply x with x

2. multiply x with 2

3. mutiply 1 with x

4. multiply 1 with 2