Lesson 3.4: Completing The Square

Question 1

The solution to 2x2 – 11 = 87 is ✔ 7 or –72 + 2i or 2 – 2i12 or –2.

Revolt · Accepted Answer

✔ 7 or –7

Question 2

The solution to 3x2 – 12x + 24 = 0 is 7 or –7✔ 2 + 2i or 2 – 2i12 or –2.

Revolt · Accepted Answer

✔ 2 + 2i or 2 – 2i

Question 3

Complete the square to write 16t² - 96t + 48 = 0 as (t + 9)² = -3✔ (t - 3)² = 6(t - 6)² = 12.

Revolt · Accepted Answer

✔ (t - 3)² = 6

Question 4

Solve (t - 3)² = 6. The arrow is at a height of 48 ft after approximately s

Revolt · Accepted Answer

Solve (t - 3)² = 6. The arrow is at a height of 48 ft after approximately: 0.55; and after: 5.45

Question 5

and after s.

Revolt · Accepted Answer

5.45

Lesson 3.4: Completing The Square Answers