Quiz 14

Sec.  8.2

21.   Multiply : .     

22.   Multiply and simplify : . 

23.   Simplify : . Hint ~ Factor 20 and find perfect squares. When you find perfect squares, take them outside the radical       

24.   Simplify : .   Hint ~ Factor 24 and find perfect squares. When you find perfect squares, take them outside the radical      

25.   SIMPLIFY. Assume are variables represent non-negative numbers

26.   SIMPLIFY. Assume are variables represent non-negative numbers . 

27.   Multiply and simplify :  

SECTION 8.6

28.   Let c be the hypotenuse (longest side) of a right triangle and a and b be the  other two sides. What is the Pythagorean Theorem? Write the letter of the correct choice below.
(a)
 
(b)

29.   Find side C:

SECTION 9.1

For this section solve for x below. Note there are TWO solutions for each equation below, one  positive and the other negative.

30.  x² = 16.   

31.  x² = 25. 

32.  x² = 13.   

33.  4x² = 100.

34.  7x² = 21.

35.  (a) (x – 2)² = 36 . (b) 

SECTION 9.3

Let a, b and c be the three coefficients  of a general quadratic equation:   . What is the  Quadratic Formula? Write the letter of the correct choice  below.

(a)

 

_(b)

 _{x = a2 + b2 + c2}

36.  SOLVE USING THE QUADRATIC FORMULA  YOU CHOSE ABOVE. Note: Full credit only  given if the correct formula is used.

_{x2  +  3x   = 40.}