91Ó°ÊÓ

Simplify each expression as completely as possible. Be sure your answers are in simplest radical form. Assume that all variables appearing under radical signs are nonnegative. $$\sqrt{9 x^{9}}$$

Solve the given equation. $$\sqrt{6-5 x}=6$$

In each of the following, perform the indicated operations and simplify as completely as possible. Assume all variables appearing under radical signs are non negative. $$a+a$$

Evaluate or simplify each expression. (Assume \(x \geq 0 .)\) $$\sqrt{256}$$

Perform the indicated operations. Simplify all answers as completely as possible. Assume that all variables appearing under radical signs are nonnegative. $$\sqrt{8}+\sqrt{18}$$

Simplify each expression as completely as possible. Be sure your answers are in simplest radical form. Assume that all variables appearing under radical signs are nonnegative. $$\sqrt{25 x^{25}}$$

Perform the indicated operations. Simplify all answers as completely as possible. Assume that all variables appearing under radical signs are nonnegative. $$\sqrt{6}(3 \sqrt{6}+\sqrt{24})$$

Evaluate or simplify each expression. (Assume \(x \geq 0 .)\) $$\sqrt{289}$$

In each of the following, perform the indicated operations and simplify as completely as possible. Assume all variables appearing under radical signs are non negative. $$\sqrt{5}+\sqrt{5}$$

Simplify each expression as completely as possible. Be sure your answers are in simplest radical form. Assume that all variables appearing under radical signs are nonnegative. $$\sqrt{40 x^{8}}$$