Mulitiplying Monomial by a Polynomial

What is the correct name of the following:
3x + 5y² - 3

• monomial
• binomial
• trinomial
• polynomial

What is the degree of the polynomial:
7x³ – 8x² + 9

• 5
• 2
• 6
• 3

Simplify:
3a(5a² + 8a + 2)

• 15a³ + 24a² + 6a
• 10a³ + 24a + 6
• 8a³ + 11a² + 6a
• 15a² + 24a + 6

Tags

CCSS.HSA.APR.A.1

Simplify:
3x³(2x² + 9x + 6)

• 6x⁶ + 27x³ + 18x
• 6x³ + 18x² + 9
• 6x⁵ + 27x⁴ + 18x³
• 6x⁶ + 45x³ 

Tags

CCSS.HSA.APR.A.1

Simplify:
-3x²(5x² + 3x)

• -15x⁴ - 9x²
• -15x⁴ - 9x³
• 2x⁴ - 6x³

Tags

CCSS.7.EE.A.1

Simplify:
5x(4x³ + 8) - 4x

• 9x⁴ + 40x
• 20x⁴ + 36x
• 20x⁴ - 20x² + 40
• 20x⁴ + 20x

Tags

CCSS.6.EE.A.3

Simplify:
3x(2x² + 9x + 6)

• 6x³ + 27x² + 18x
• 6x³ + 18x² + 9x
• 6x³ + 18x² + 18x
• 6x³ + 27x² + 9x

Tags

CCSS.HSA.APR.A.1

Simplify:
5x(4x³ + 8)

• 9x⁴ + 40x
• 20x⁴ + 40x
• 9x⁴ + 40
• 20x⁴ + 40

Tags

CCSS.6.EE.A.3

Simplify the expression.
-3x²( 7x² - x + 4)

• -21x⁴ + 3x³ -12x²
• 7x² - x + 4 (-3x²)
• 21x⁴ + 3x³ + 12x²
• -12x² + 3x³ -21x⁴

Tags

CCSS.HSA.APR.A.1

Classify by number of terms:
3x³ – 6x

• Monomial
• Binomial
• Trinomial
• 4-Term Polynomial