91Ó°ÊÓ

Q. 315

Page 1078

(a) Explain why $(-\sqrt{n}{)}^2$is always positive, for $nâ‰\yen 0$.

(b) Explain why $-(\sqrt{n}{)}^2$is always negative, for $nâ‰\yen 0$.

Q. 316

Page 1078

Use the binomial square pattern to simplify $(3+\sqrt{2}{)}^2$. Explain all your steps.

Q 317.

Page 1090

In the following exercise, simplify.

$\frac{\sqrt{27}}{6}$

Q 318.

Page 1090

In the following exercise, simplify.

$\frac{\sqrt{50}}{10}$

Q. 319

Page 1090

Simplify Expressions -

$\frac{\sqrt{72}}{9}$

Q 32.

Page 1041

In the following exercises, simplify.

$\sqrt{w^{24}}$

Q. 320

Page 1090

Simplify Expressions -

$\frac{\sqrt{243}}{6}$

Q. 321

Page 1090

Simplify Expressions -

$\frac{2-\sqrt{32}}{8}$

Q. 322

Page 1090

Simplify Expressions -

$\frac{3+\sqrt{27}}{9}$

Q. 323

Page 1090

Simplify Expressions -

$\frac{6+\sqrt{45}}{6}$