Question

How do you solve `8b^2-12b=0`?

Answer 1

`b=0, " or "b=3/2`

Explanation:

Factorise by common factors then consider each product separately.

`8b^2-12b=0`

`=>4b(2b-3)=0`

`"either "4b=0=>b=0`

`"or "2b-3=0=>b=3/2`