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.(3x + 7y)(4x − 7y) =
- 2.(x² + 2x + 9)(2x + 9) =
- 3.(2x² + 3x + 3)(3x + 6) =
- 4.(x² − x − 8)(2x + 9) =
- 5.(3x² − 4x − 6)(x − 7) =
- 6.(3x + 3y)(3x − 2y) =
- 7.(4x + 9y)(4x + 6y) =
- 8.(3x² + x + 5)(2x + 5) =
- 9.(3x + 3y)(5x + 7y) =
- 10.(x² − 3x − 9)(2x + 9) =
- 11.(5x + 2y)(3x − 7y) =
- 12.(x + 7y)(5x + 3y) =
- 13.(3x² + 5x + 3)(3x + 2) =
- 14.(x² − x + 1)(3x + 7) =
- 15.(x² + 4x + 4)(x + 3) =
- 16.(2x² + 2x + 5)(2x + 3) =
- 17.(2x + 8y)(x + 7y) =
- 18.(2x² − 2x + 3)(x + 9) =
- 19.(x² + 5x + 7)(2x − 2) =
- 20.(3x² + 2x − 5)(2x + 7) =
- 21.(2x² − x − 4)(2x − 4) =
- 22.(x² + 4x + 1)(2x − 3) =
- 23.(5x + 2y)(4x − 2y) =
- 24.(3x² − 5x − 6)(2x + 2) =
- 25.(x² + 5x + 4)(3x + 7) =
- 26.(x² − 2x + 7)(2x − 3) =
- 27.(2x² − 5x − 3)(x + 8) =
- 28.(x² + 2x − 5)(3x + 7) =
- 29.(x² + 2x + 6)(x + 5) =
- 30.(2x − y)(4x + 3y) =
- 31.(x² − 5x + 6)(x + 3) =
- 32.(x² − 2x + 5)(3x − 5) =
- 33.(2x + 8y)(x + 2y) =
- 34.(2x² + 4x − 4)(x + 1) =
- 35.(x² + 3x + 5)(2x + 8) =
- 36.(x² + 5x + 4)(2x + 7) =
- 37.(x² + x + 4)(x + 3) =
- 38.(5x + 2y)(3x + 4y) =
- 39.(2x² + 2x + 3)(x + 3) =
- 40.(x² − 3x + 6)(x + 7) =
Answer key
- 12x² + 7xy − 49y²
- 2x³ + 13x² + 36x + 81
- 6x³ + 21x² + 27x + 18
- 2x³ + 7x² − 25x − 72
- 3x³ − 25x² + 22x + 42
- 9x² + 3xy − 6y²
- 16x² + 60xy + 54y²
- 6x³ + 17x² + 15x + 25
- 15x² + 36xy + 21y²
- 2x³ + 3x² − 45x − 81
- 15x² − 29xy − 14y²
- 5x² + 38xy + 21y²
- 9x³ + 21x² + 19x + 6
- 3x³ + 4x² − 4x + 7
- x³ + 7x² + 16x + 12
- 4x³ + 10x² + 16x + 15
- 2x² + 22xy + 56y²
- 2x³ + 16x² − 15x + 27
- 2x³ + 8x² + 4x − 14
- 6x³ + 25x² + 4x − 35
- 4x³ − 10x² − 4x + 16
- 2x³ + 5x² − 10x − 3
- 20x² − 2xy − 4y²
- 6x³ − 4x² − 22x − 12
- 3x³ + 22x² + 47x + 28
- 2x³ − 7x² + 20x − 21
- 2x³ + 11x² − 43x − 24
- 3x³ + 13x² − x − 35
- x³ + 7x² + 16x + 30
- 8x² + 2xy − 3y²
- x³ − 2x² − 9x + 18
- 3x³ − 11x² + 25x − 25
- 2x² + 12xy + 16y²
- 2x³ + 6x² − 4
- 2x³ + 14x² + 34x + 40
- 2x³ + 17x² + 43x + 28
- x³ + 4x² + 7x + 12
- 15x² + 26xy + 8y²
- 2x³ + 8x² + 9x + 9
- x³ + 4x² − 15x + 42
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