Distance and Midpoints in the Complex Plane

Question 1

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

Revolt · Accepted Answer

B: 4x2 +12x + 9; C: x2 + 20x + 100

Question 2

What method would you choose to solve the equation 2x2 – 7 = 9? Explain why you chose this method.

Revolt · Accepted Answer

/Explanation: I would use the square root property of equality. Because there is no x term, I would just add and divide to get x2 by itself. Then I would take the square root.
		Which points did you include in your response? Check all of the boxes that apply.Use the square root property of equality.There is no x term.Add and divide to isolate x2.

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

B: ✔ (x - 8)² = -8

Distance and Midpoints in the Complex Plane Answers

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