Solving Quadratic Equations: Completing the Square

Question 1

Question 1

Revolt · Accepted Answer

81952

Question 2

⇒ 100

Revolt · Accepted Answer

81956

Question 3

What number would you add to both sides of x2 + 7x = 4 to complete the square?

Revolt · Accepted Answer

D:

Question 4

Solve x2 + 12x = –20 by completing the square.

Revolt · Accepted Answer

C: ✔ 36

Question 5

Solve x2 + 8x = 33 by completing the square. Which is the solution set of the equation?

Revolt · Accepted Answer

A: {–11, 3}

Question 6

Which describes the solutions of the equation?

Revolt · Accepted Answer

A: Since 7 and 11 are both rational, the sum and difference are rational.

Question 7

What is the solution set of x2 – 10 = 30x?

Revolt · Accepted Answer

C: {15 – , 15 + }

Question 8

What are the solutions of x2 = 8 – 5x?

Revolt · Accepted Answer

B:

Question 9

x + 3✔ x + 6x + 10x + 12

Revolt · Accepted Answer

B: ✔ x + 6

Question 10

–4 or 4–6 or 62 or 10✔ –10 or –2

Revolt · Accepted Answer

D: ✔ –10 or –2

Solving Quadratic Equations: Completing the Square Answers