Section 1

Question 1

What are three methods to solve linear quadratic equations?

Answer 1

Factor
Quadratic Formula
Complete the Square

Question 2

What is the factoring method?

Answer 2

Best when simple and works
Reverse FOIL
Factor out and set both to zero

Question 3

What is the Quadratic formula method? for solving quadratic equations?

Answer 3

Make the terms into standard form
Plug into Quadratic Formula
Solve

Question 4

What is the Quadratic Formula?

Answer 4

x =
-b +/- square root of b² - 4ac
2a

Question 5

What is the complete the square method?

Answer 5

1: make sure a = 1
2: move constant
3: (1/2 b)²
4: add to both sides
5: factor
——(shortcut, factor will always be result of b/2)
6: finish math for x

Question 6

If a ≠ 1 for complete the square, what if you do?

Answer 6

Divide both sides by a to get rid of it and set it to 1

Question 7

In the quadratic formula -
What do you do to make sure you get the proper answer for the term
- (4ac) ?

Answer 7

Count the negatives and that is the end symbol

Question 8

What is the same as the square root of a/b?

Answer 8

square root of a/b

SR a
——
SR b

Question 9

What is not a real number?
What is another term for an imaginary number?

Answer 9

SR -x
=i
——-
Complex numbers

Question 10

What is “i” equal to?
What is i² equal to?

Answer 10

i² = -1