Review for Topic 7 Mid Unit

Review for Topic 7 Mid Unit

By Melynda McMillin

Adding or Subtracting Polynomials

​Some text here about the topic of discussion.

Multiple Choice

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1
• -2x² - 11x -4
• 2x² + 5x -7
• -2x² + 11x -4

Multiple Choice

(5x⁴ - 4x³ - 2x² + x - 19) - (x⁴ + 5x³ + 8x² + x + 5)

• 4x⁴ - 9x³ - 10x² - 24
• 4x⁴ - 9x³ - 10x² - 2x - 24
• 4x⁴ - 9x³ - 10x² + 2x - 24
• -4x⁴ - 9x³ - 10x² - 24

Multiplying Polynomials

​Some text here about the topic of discussion.

Multiple Choice

Multiply:
(3x – 1)(x + 5) 

• 3x² + 4x + 5
• 3x² + 4x - 5
• 3x² + 14x + 5
• 3x² + 14x - 5

Multiple Choice

Find the product:
(n - 5)(n - 1)

• n² - 5n + 5
• n² - 6n + 5
• n² + 5
• n² + 6n + 5

Multiple Choice

What is the area of this rectangle?

• 48

• $$8x^2+14x+6$$

• $$8x^2+x+5$$

• $$2x^2+6x+8$$

Remember:

​(x-8)²

This means : (x-8)(x-8)

​

Not: (x²​-8²) <-- Do NOT do this!

Some text here about the topic of discussion

Multiple Choice

Expand the squared binomial.
(x - 5)²?

• x² + 25
• x² - 25
• x² - 10x - 25
• x² - 10x + 25

Multiple Choice

Find the Product.
(2x + 3)(2x - 3)

• 4x² - 9 
• 4x² + 9
• 4x²- 12x - 9
• 4x² + 12x - 9