Question

Simplify
`\sqrt{.49x^(18) }` where x<0

Answer 1

-7x⁹

Explanation:

`\sqrt{49x^(18)} = √((7^2)(x^9)^2) =\sqrt{(7x^(9))^2} = |7x^9|`

Since x < 0 ,then |7x⁹| = -7x⁹