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The Pythagorean Theorem is _________

• a + b = c

• a² + b² = c²

• a² + b² + c²

• A = LW

Which equation can be used to solve for "x"?

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

Determine the length of the missing side.

• 7

• 8

• 17

• 23

Do the segment lengths 15, 12, and 9 form a right triangle?

• Yes
• No
• Maybe
• Pythagoras

Simplify and then subtract:

3√2 - 3√18

• -4√8

• 4√9-6√3

• 5√12

• -6√2

Rationalize the denominator:
 $\frac{2\sqrt{8}}{\sqrt{12x^3}}$  

•  $\frac{\sqrt{96x}}{6x^2}$  

•  $\frac{2\sqrt{6x}}{3x^2}$  

•  $\frac{2x\sqrt{6x}}{3}$  

•  $\frac{4\sqrt{2x}}{2x\sqrt{3}}$  

Multiply:
 $\left(4+\sqrt{2}\right)\left(4-\sqrt{2}\right)$  

•  $16-\sqrt{2}$  

•  $4-\sqrt{2}$  

• 14

• 18

What should you multiply $\frac{3\sqrt{2}}{2-\sqrt{7}}$  by to rationalize the denominator?

•  $2-\sqrt{7}$  

•  $\sqrt{7}$  

•  $2+\sqrt{7}$  

•  $\sqrt{2}$  

Rationalize the following: $\frac{\sqrt{2}}{\sqrt{3}+\sqrt{5}}$  

•  $\frac{\sqrt{6}-\sqrt{10}}{8}$  

•  $\frac{\sqrt{6}-\sqrt{10}}{-2}$  

•  $\frac{\sqrt{6}+\sqrt{10}}{8}$  

•  $\frac{2\sqrt{3}+2\sqrt{5}}{-2}$  

(7 − √2)(5 + √3)

• 35 + 7√3 − 5√2 − √6
• 29 + 7√3 − 5√2
• 35 +√10 − √7 −√6
• √50