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.(4x + 8y)(x − 6y) =
- 2.(x + 2y)(5x + 2y) =
- 3.(3x² + 3x + 1)(x + 5) =
- 4.(2x² + x + 8)(x + 8) =
- 5.(2x − 7y)(x + 4y) =
- 6.(2x + 9y)(2x − 6y) =
- 7.(2x² + 5x + 2)(x + 3) =
- 8.(2x + 8y)(2x + 5y) =
- 9.(2x² − 2x + 8)(3x + 5) =
- 10.(2x² + 2x + 2)(x + 4) =
- 11.(5x − 4y)(4x + 7y) =
- 12.(x² − 3x − 6)(2x + 5) =
- 13.(x² + x − 1)(x + 5) =
- 14.(3x² − 2x − 2)(3x − 9) =
- 15.(5x + 4y)(x − 4y) =
- 16.(2x − y)(3x + 6y) =
- 17.(3x² + x − 5)(2x + 1) =
- 18.(5x + 2y)(x − 4y) =
- 19.(3x² − 5x + 2)(2x + 4) =
- 20.(3x − 6y)(4x + 5y) =
- 21.(5x − 2y)(3x + 9y) =
- 22.(x + 2y)(4x + 8y) =
- 23.(2x + 8y)(5x + 9y) =
- 24.(2x + 9y)(2x + 9y) =
- 25.(x² + x + 5)(x − 8) =
- 26.(2x + 7y)(3x − 2y) =
- 27.(x² + 5x + 5)(x − 7) =
- 28.(2x + y)(3x + 5y) =
- 29.(x² + 2x + 3)(x + 5) =
- 30.(3x² − 5x + 4)(3x + 1) =
- 31.(4x + 3y)(2x − 7y) =
- 32.(x² + x + 6)(2x + 2) =
- 33.(3x² + 3x + 2)(x + 3) =
- 34.(3x² + 3x + 9)(3x + 6) =
- 35.(2x² + x − 1)(3x + 2) =
- 36.(5x + 9y)(x + 7y) =
- 37.(5x + 8y)(3x + 2y) =
- 38.(3x + y)(5x + 6y) =
- 39.(2x² − 4x − 2)(2x + 9) =
- 40.(2x + 4y)(5x + 9y) =
Answer key
- 4x² − 16xy − 48y²
- 5x² + 12xy + 4y²
- 3x³ + 18x² + 16x + 5
- 2x³ + 17x² + 16x + 64
- 2x² + xy − 28y²
- 4x² + 6xy − 54y²
- 2x³ + 11x² + 17x + 6
- 4x² + 26xy + 40y²
- 6x³ + 4x² + 14x + 40
- 2x³ + 10x² + 10x + 8
- 20x² + 19xy − 28y²
- 2x³ − x² − 27x − 30
- x³ + 6x² + 4x − 5
- 9x³ − 33x² + 12x + 18
- 5x² − 16xy − 16y²
- 6x² + 9xy − 6y²
- 6x³ + 5x² − 9x − 5
- 5x² − 18xy − 8y²
- 6x³ + 2x² − 16x + 8
- 12x² − 9xy − 30y²
- 15x² + 39xy − 18y²
- 4x² + 16xy + 16y²
- 10x² + 58xy + 72y²
- 4x² + 36xy + 81y²
- x³ − 7x² − 3x − 40
- 6x² + 17xy − 14y²
- x³ − 2x² − 30x − 35
- 6x² + 13xy + 5y²
- x³ + 7x² + 13x + 15
- 9x³ − 12x² + 7x + 4
- 8x² − 22xy − 21y²
- 2x³ + 4x² + 14x + 12
- 3x³ + 12x² + 11x + 6
- 9x³ + 27x² + 45x + 54
- 6x³ + 7x² − x − 2
- 5x² + 44xy + 63y²
- 15x² + 34xy + 16y²
- 15x² + 23xy + 6y²
- 4x³ + 10x² − 40x − 18
- 10x² + 38xy + 36y²
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