Question

How do you simplify: square root of 32 - square root of 18?

Answer 1

`=color(blue)(sqrt2`

Explanation:

`sqrt32 - sqrt18`

• `sqrt32=sqrt(2^2*2^2 *2) =4sqrt2`
• `sqrt18=sqrt(3^2*2)=3sqrt2`

`sqrt32 - sqrt18 = 4sqrt2-3sqrt2`

`=color(blue)(sqrt2`