Question

`D^2 = 16` solve quadratic equation?

thanks

Answer 1

`D_1=8`
`D_2=-8`

Explanation:

`D²=16`
`D²-16=0`
We know that `a²-b²=(a-b)(a+b)`
So :
`(D-8)(D+8)=0`
So now we can see that there's two solutions :
`D_1=8`
`D_2=-8`
\0/ here's our answer!