Question

How do you solve `t^2 - t = 12`?

Answer 1

`t=4`
`t=-3`

Explanation:

`t^2-t=12`
or
`t^2-t-12=0`
or
`t^2-4t+3t-12=0`
or
`t(t-4)+3(t-4)=0`
or
`(t-4)(t+3)=0`
or
`(t-4)=0`
or
`t=4`=======Ans `1`
or
`(t+3)=0`
or
`t=-3`=======Ans `2`