Question

5x^2=20 Solve for both roots.

Answer 1

Step-by-step:

`5x^(2) = 20`

divide both sides by 5:

`(5x^(2))/(5) 5x^(2) = 20/5\\\\x^(2) = 4\\`

`\sqrt{x^(2) } =` ± 4

2 * 2 = 4

so:

roots are: -2 and 2