Solving Quadratic Equations: Completing the Square (Continued)

Question 1

What error did Penelope make in her work?

Revolt · Accepted Answer

Penelope should have added 4 to both sides instead of adding 1.

Question 2

x = –2 or x = [___]

Revolt · Accepted Answer

-8

Question 3

–32 + [___] = 2(x2 + 10x + 25)

Revolt · Accepted Answer

Part 1: 50; ⇒ 3: 82193; ⇒ -8: 82194; 50

Question 4

± [___] = x + 5

Revolt · Accepted Answer

3

Question 5

Add 4Add 16Subtract 4Subtract 16

Revolt · Accepted Answer

Add 4; Selection 1: Add 4; Selection 2: subtract 24 from 5; Selection 3: 2

Question 6

add 4 to 5 add 24 to 5 subtract 4 from 5 subtract 24 from 5

Revolt · Accepted Answer

subtract 24 from 5

Question 7

–2–125

Revolt · Accepted Answer

–2; Selection 1: –2; Selection 2: Add 25/4; Selection 3: subtract 25/2; Selection 4: 5/2

Question 8

Subtract 25/2Add 25/2Subtract 25/4Add 25/4

Revolt · Accepted Answer

Add 25/4

Question 9

subtract 25/2add 25/2subtract 25/4add 25/4

Revolt · Accepted Answer

subtract 25/2

Question 10

–5/2–11/25/211/2

Revolt · Accepted Answer

5/2

Solving Quadratic Equations: Completing the Square (Continued) Answers