7.1b: Adding and Subtracting Polynomials

7.1b: Adding and Subtracting Polynomials

7.1b Adding and Subtracting Polynomials

• Add/Subtract "LIKE" terms only

• Watch exponents and positive/negative signs

Multiple Choice

True or False:

3x², 5x², and -6x³ are "LIKE" terms

• True

• False

• Incomplete question

Multiple Choice

Find the sum of these polynomials:

(-4x + 9) + (6x - 14)

• -2x - 5

• 2x - 5

• 2x + 5

• -2x + 5

Multiple Choice

Find the sum of these polynomials:

(x² + 3x + 5) + (-x² + 6x - 4)

• 2x² + 9x + 1

• 2x² + 1

• 9x - 1

• 9x + 1

Multiple Choice

Find the sum of these polynomials:

(t² + 3t³ - 3) + (2t² + 7t -2t³)

• t³ + 3t² + 7t - 3

• 3t² + 10t

• 4t⁵ + 7t - 3

• 4t³ + 7t - 3

Multiple Choice

Find the difference of these polynomials:

(-5h - 2) - (7h + 6)

• 13h + 8

• 13h - 8

• -13h + 8

• -13h - 8

Multiple Choice

Find the difference of these polynomials:

(-x² - 5) - (-3x² - x - 8)

• 2x² - x - 3

• 2x²+ x + 3

• 2x² - x + 3

• 2x² + x - 3

Multiple Choice

Find the difference of these polynomials:

(k² + 6k³ - 4) - (5k³ + 7k -3k² + 2)

• k³ - 4k² -7k - 6

• k³ + 4k² + 7k - 6

• k³ + 4k² - 7k -6

• k³ - 4k² + 7k - 6