Alg: Chapter 5 Review - Quadratic Equations

For which equation does it make the most sense to solve by using the zero product property?

• 8x² + 6x + 5 = 0

• x² = 9x – 20

• x² + 3x – 41 = 0

• x² + 4x – 21 = 0

Fiona is adding fencing for a dog pen. One side of the pen is against the fencing for the yard, so she only needs to enclose three sides of a rectangle. Fiona will use 150 ft of fencing for the enclosure. Let x represent the length of each side that touches the existing fence. Which equation represents the area of the enclosure?

• A = 150x – 2x²

• A = 150x – x²

• A = 2x²

• A = 150x

• 10.95445115

• 2.581988897

Simplify (6 + 5i)(3 – 2i)

• –5

Simplify (3 – 4i) – (9 – 5i)

Solve w² + 87 = –75

• No Solution

Let n² + 20n = 7. What values make an equivalent number sentence after completing the square? n² + 20n + ___ = ___. Write the two numbers in order and separate with a comma.

Solve for h. Use the completing the square method. h² + 2h = 3 If there is more than one answer, separate them with a comma