Question

Solve each equation by taking square roots. Show your work. Simplify your answers. Do not write your answers in decimal form.

Answer 1

Explanation:

`\sf \hookrightarrow \: {n}^(2) = 20 \\ \sf \hookrightarrow \: \sqrt{ {n}^(2) } = √(20) \\ \sf \hookrightarrow \: n = √(20) \\ \star \bf \: n = 2 √(5) \\ \\ \sf \hookrightarrow \: {a}^(2) = 90 \\ \sf \hookrightarrow \: \sqrt{ {a}^(2) } = √(90) \\ \sf \hookrightarrow \: a = √(90) \\ \star \bf \: a = 3 √(10)`