Multiplying Dividing Polynomials

Which expression represents the product of (2x+1)(x+2) ? (shown in the diagram)

• 2x + 5x +2

• 2x² + 5x +2

• 5x² + 2x +2

• 2x + 7

Multiply then simplify: (5x)(-4x + 2y)

• 20x² - 10xy

• -20x² + 10xy

• x² + 7xy

• -9x² + 7xy

Simplify the following: (-6a)(-4a)

• -10a²

• -10+2a

• -24+a²

• 24a²

Simplify the following: (4x)(- 3x)

• x²

• 12x²

• -12x²

• 7x²

(5x + 2)(x² - 3x + 6)

Mathematical Equivalence

ON

Simplify the following: (20x²) ÷ (-x)

• 20x

• -20x²

• -20x

• -20x³

Which expression represents the unknown (?) side of this shape?

• 27x² × 3x

• 27x² ÷ 3x

• 3x × 27x²

• 3x ÷ 27x²

Multiply:
(3x – 1)(x + 5) 

• 3x² + 4x + 5

• 3x² + 4x - 5

• 3x² + 14x + 5

• 3x² + 14x - 5

(2x − 3)(2x + 3)

• 4x² − 12x + 9

• 4x² − 9

• 4x² + 9

• 4x² + 6x − 9

(x + 3)(x + 7)

• x² + 10x + 21

• x² + 21

• x² + 4x + 21

• x² − 10x + 21