Completing The Square

Question 1

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

Revolt · Accepted Answer

4x2 +12x + 9; x2 + 20x + 100

Question 2

x² + x + 49

Revolt · Accepted Answer

14

Question 3

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

Revolt · Accepted Answer

✔ (x - 8)² = -8

Question 4

Solve x2 - 16x + 60 = -12 by completing the steps.

Revolt · Accepted Answer

"8"; 2

Question 5

Use the square root property of equality to solve(x – 3)2 = –4.The solutions are –1 or 71 or 5✔ 3 ± 2i3 ± 4i.

Revolt · Accepted Answer

✔ 3 ± 2i

Completing The Square Answers