Unit 8 Quiz HW#5

Write 4𝑥³ – 6x + 2𝑥⁵ + 3 in standard form.

• 3 – 6x + 4𝑥³ + 2𝑥⁵

• 4𝑥³ + 3 + 2𝑥⁵ – 6x

• 2𝑥⁵ + 4𝑥³ – 6x + 3

• –6x + 4𝑥³ + 3 + 2𝑥⁵

Find (9𝑡² + 4t – 6) – (𝑡² – 2t + 4)

• 8𝑡² + 6t – 10

• 8𝑡² + 2t – 2

• 9𝑡² + 6t – 2

• 9𝑡² + 6t – 10

Find the sum (4𝑦² + 3y – 7) + (4𝑦² – 7y – 2)

Factor 𝑥² – 10x + 9

• (x – 1)(x – 9)

• (x + 1)(x + 9)

• (x – 1)(x + 9)

• (x + 1)(x – 9)

Find the product (5𝑦 + 6)²

Factor 5𝑥² – 13x + 6 (AC method)

• (x + 3)(5x – 2)

• (x – 2)(5x – 3)

• (x + 2)(5x + 3)

• (x – 3)(5x + 2)

Factor 𝑚² + 12m – 28 (X-box method)

Factor 5𝑡²+ 17t – 12

• (5t – 3)(t + 4)

• (6t – 1)(3t + 8)

• (4t – 3)(t + 5)

• (2t – 2)(t + 3)

If the area of a rectangle is represented by x² + x – 42 square feet, which could be the length of a side of the rectangle? (X-box Method)

• x - 6 ft

• x + 3 ft

• x + 8 ft

• x +1 ft

Solve for x. 5x + 8 = 3 + 2(3x – 4)