- \sqrt{49 {x}^(2) } simplify expression ​

Question

`- \sqrt{49 {x}^(2) }`
simplify expression
​

Answer 1

Explanation:

Given

`- \sqrt{49 {x}^(2) } \\ = - \sqrt{ {7}^(2) {x}^(2) } \\ = - 7x`

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