Classifying Adding Subtracting Multiplying Polynomials

Which of the following polynomials is written in standard form?

• 9 + 8x - 2x²

• 10x + x³ - 4x² - 11

• x⁴ + 5x³ - 6x +1

• 4x³ + 3x⁴ + 2x + 1

Subtract the following polynomials: (6x² + 10x - 9) - (4x² - 13)

• 2x² + 10x - 22

• 10x² + 10x - 22

• 2x² + 10x - 4

• 2x² + 10x + 4

Subtract the following polynomials: (-5x² + x³ - 2x + 3) - (-5x² -x³ + 4x + 8)

• 2x³ - 6x + 11

• 2x³ - 6x - 5

• 2x³ - 10x² - 6x - 5

• - 10x² - 6x - 5

Subtract: (4x²+ x) - (x²+ 2x)

• 3x² - x

• 4x² + 2x

• 3x² + 3x

• 3x² + 2x

Multiply: (x + 5)(x + 4)

• x² + x + 20

• x² + 20x + 9

• x² + 9x + 20

• x² - 9x + 54

Classify by NUMBER OF TERMS: 3x³ – 6x

• Monomial

• Binomial

• Trinomial

• 4-Term Polynomial

Classify BY DEGREE: 3x³ – 6x

• Constant

• Linear

• Quadratic

• Cubic

Classify the polynomial by DEGREE and NUMBER OF TERMS.

• quartic quadratic trinomial

• quartic polynomial

• quadratic trinomial

• quartic trinomial

Add:  (4x - 2x³) + (5x³ - 4x + 5)

• 3x³ + 5

• 3x³ + 8x + 5

• 3x² + 5

• 7x³ + 8x + 5

What is the leading coefficient of the polynomial?
  7x⁵ - 9x² + 6x

• 7

• 5

• 9

• 2