AnswersAlgebra III AComplex Numbers

Completing The Square Answers

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Which of the following expressions are perfect-square trinomials? Check all of the boxes that apply.

A
x2 – 16x – 64
B
4x2 +12x + 9
C
x2 + 20x + 100
D
x2 + 4x + 16
3

Question text not available

Answers:
Blank 1:9
Blank 2:9
4

–13 +

Answer:

9

5

(x + )²

Answer:

-3

6

=

Answer:

-4

9

Given (x – 7)2 = 36, select the values of x.

A
x = 13
B
x = 1
C
x = –29
D
x = 42
12

Now, write x² - 16x + 64 = -8 as (x - 8)² = -16(x - 8)² = -8(x - 16)² = -16(x - 16)² = -8

A
(x - 8)² = -16
B
(x - 8)² = -8
C
(x - 16)² = -16
D
(x - 16)² = -8
15

Write the equation so that

Answers:
Blank 1:-6
Blank 2:-13
19

Given (x – 1)2 = 50, select the values of x.

A
x = –49
B
x = 51
C
Option
D
Option
20

.

Question illustration
Answer:

8 - 2√2i

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