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.(x² + 5x − 1)(3x + 8) =
- 2.(3x² + 3x − 3)(2x + 7) =
- 3.(3x − 8y)(x + 8y) =
- 4.(x² + x + 1)(3x + 3) =
- 5.(2x² + 5x − 6)(2x − 1) =
- 6.(3x² + 5x − 1)(2x − 8) =
- 7.(2x² + 5x + 2)(3x + 1) =
- 8.(3x² + 3x − 8)(x + 2) =
- 9.(x − 4y)(3x + 4y) =
- 10.(3x² + 4x + 9)(x − 6) =
- 11.(x² − x + 8)(x + 5) =
- 12.(x² + 5x + 9)(x + 6) =
- 13.(3x² − 2x + 8)(x + 4) =
- 14.(2x² + x + 5)(x + 1) =
- 15.(3x² − x + 9)(3x − 9) =
- 16.(3x² + 5x + 9)(3x + 9) =
- 17.(x² + 3x + 6)(2x + 4) =
- 18.(5x + 3y)(x − 7y) =
- 19.(5x − 6y)(x + 5y) =
- 20.(3x² + 3x + 9)(2x + 3) =
- 21.(2x² + 5x + 9)(x + 4) =
- 22.(3x + 4y)(5x − 8y) =
- 23.(5x + 3y)(5x + 9y) =
- 24.(2x² + 3x + 4)(x + 7) =
- 25.(5x + 3y)(4x − 3y) =
- 26.(5x + 3y)(x + 8y) =
- 27.(2x² + 3x + 6)(2x − 7) =
- 28.(4x + 6y)(x + y) =
- 29.(5x + 8y)(5x − 8y) =
- 30.(5x − 4y)(3x + 8y) =
- 31.(2x² − 3x + 1)(2x − 9) =
- 32.(4x + 3y)(5x − 4y) =
- 33.(2x² − 4x + 5)(3x + 3) =
- 34.(3x + 2y)(4x + 7y) =
- 35.(x² + 5x + 3)(2x + 2) =
- 36.(2x² + x − 2)(x + 6) =
- 37.(x + 6y)(4x + 9y) =
- 38.(2x² − 2x + 7)(x + 2) =
- 39.(3x² − 5x − 7)(2x + 2) =
- 40.(x² − 5x + 7)(x + 8) =
Answer key
- 3x³ + 23x² + 37x − 8
- 6x³ + 27x² + 15x − 21
- 3x² + 16xy − 64y²
- 3x³ + 6x² + 6x + 3
- 4x³ + 8x² − 17x + 6
- 6x³ − 14x² − 42x + 8
- 6x³ + 17x² + 11x + 2
- 3x³ + 9x² − 2x − 16
- 3x² − 8xy − 16y²
- 3x³ − 14x² − 15x − 54
- x³ + 4x² + 3x + 40
- x³ + 11x² + 39x + 54
- 3x³ + 10x² + 32
- 2x³ + 3x² + 6x + 5
- 9x³ − 30x² + 36x − 81
- 9x³ + 42x² + 72x + 81
- 2x³ + 10x² + 24x + 24
- 5x² − 32xy − 21y²
- 5x² + 19xy − 30y²
- 6x³ + 15x² + 27x + 27
- 2x³ + 13x² + 29x + 36
- 15x² − 4xy − 32y²
- 25x² + 60xy + 27y²
- 2x³ + 17x² + 25x + 28
- 20x² − 3xy − 9y²
- 5x² + 43xy + 24y²
- 4x³ − 8x² − 9x − 42
- 4x² + 10xy + 6y²
- 25x² − 64y²
- 15x² + 28xy − 32y²
- 4x³ − 24x² + 29x − 9
- 20x² − xy − 12y²
- 6x³ − 6x² + 3x + 15
- 12x² + 29xy + 14y²
- 2x³ + 12x² + 16x + 6
- 2x³ + 13x² + 4x − 12
- 4x² + 33xy + 54y²
- 2x³ + 2x² + 3x + 14
- 6x³ − 4x² − 24x − 14
- x³ + 3x² − 33x + 56
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