Question

How do you solve `4x^2= 16` using the quadratic formula?

Answer 1

`x=2 or x=-2`
`4x^2=16`
`x^2=4`
`x=pm2`

Explanation:

Rearrange

`4x^2+0x-16=0`

a=4, b=0, c=-16 substitute these values into the formula.