Multiplying Polynomials Worksheet
The trick (Urdhva Tiryagbhyam): (ax² + bx + c)(dx + e): x³ = a×d; x² = a×e + b×d; x = b×e + c×d; number = c×e. (ax + by)(cx + dy): x² = a×c; xy = a×d + b×c; y² = b×d. Keep the signs; leave out a term whose total is 0. Type x³ as x^3.
NameDateTime takenScore ___ / 40
- 1.(2x² − 4x + 8)(3x + 6) =
- 2.(x² + 5x + 7)(2x − 1) =
- 3.(x² − 4x + 1)(x + 4) =
- 4.(x + y)(x + 9y) =
- 5.(3x² − 2x + 5)(x + 3) =
- 6.(x² + 3x + 2)(3x + 9) =
- 7.(2x + 8y)(4x + y) =
- 8.(x² + x + 1)(3x + 3) =
- 9.(3x² − 3x + 2)(3x + 1) =
- 10.(x² − 2x + 9)(2x + 8) =
- 11.(2x² − x + 9)(3x − 9) =
- 12.(3x + y)(4x + 5y) =
- 13.(5x − y)(x + 7y) =
- 14.(5x − 5y)(4x − 6y) =
- 15.(2x² + x − 9)(2x + 1) =
- 16.(2x² − x − 1)(x + 1) =
- 17.(3x² + x + 9)(2x + 4) =
- 18.(4x − y)(3x − y) =
- 19.(3x + 2y)(4x − 2y) =
- 20.(x² + 3x + 1)(x + 3) =
- 21.(3x² − 4x + 1)(3x + 2) =
- 22.(2x² + x − 5)(x + 2) =
- 23.(3x² + 4x − 2)(2x + 7) =
- 24.(2x + y)(4x + 5y) =
- 25.(x² − 4x + 6)(3x − 1) =
- 26.(3x + y)(4x − 5y) =
- 27.(x² + x − 5)(3x − 2) =
- 28.(3x + 3y)(3x + 6y) =
- 29.(3x + 2y)(4x + 2y) =
- 30.(x − 3y)(x − 2y) =
- 31.(4x − 6y)(4x + 9y) =
- 32.(3x² + x + 4)(x + 4) =
- 33.(2x² + 5x + 3)(x − 2) =
- 34.(3x² + x + 3)(x − 5) =
- 35.(3x² + x + 5)(3x − 7) =
- 36.(5x + 3y)(4x + 2y) =
- 37.(x² + 3x + 8)(2x + 8) =
- 38.(2x² + 3x + 9)(3x + 2) =
- 39.(x² + 5x + 4)(3x + 3) =
- 40.(x² + 4x + 7)(x + 6) =
Answer key
- 6x³ + 48
- 2x³ + 9x² + 9x − 7
- x³ − 15x + 4
- x² + 10xy + 9y²
- 3x³ + 7x² − x + 15
- 3x³ + 18x² + 33x + 18
- 8x² + 34xy + 8y²
- 3x³ + 6x² + 6x + 3
- 9x³ − 6x² + 3x + 2
- 2x³ + 4x² + 2x + 72
- 6x³ − 21x² + 36x − 81
- 12x² + 19xy + 5y²
- 5x² + 34xy − 7y²
- 20x² − 50xy + 30y²
- 4x³ + 4x² − 17x − 9
- 2x³ + x² − 2x − 1
- 6x³ + 14x² + 22x + 36
- 12x² − 7xy + y²
- 12x² + 2xy − 4y²
- x³ + 6x² + 10x + 3
- 9x³ − 6x² − 5x + 2
- 2x³ + 5x² − 3x − 10
- 6x³ + 29x² + 24x − 14
- 8x² + 14xy + 5y²
- 3x³ − 13x² + 22x − 6
- 12x² − 11xy − 5y²
- 3x³ + x² − 17x + 10
- 9x² + 27xy + 18y²
- 12x² + 14xy + 4y²
- x² − 5xy + 6y²
- 16x² + 12xy − 54y²
- 3x³ + 13x² + 8x + 16
- 2x³ + x² − 7x − 6
- 3x³ − 14x² − 2x − 15
- 9x³ − 18x² + 8x − 35
- 20x² + 22xy + 6y²
- 2x³ + 14x² + 40x + 64
- 6x³ + 13x² + 33x + 18
- 3x³ + 18x² + 27x + 12
- x³ + 10x² + 31x + 42
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