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 + 5x − 4)(x + 1) =
- 2.(x + 2y)(3x − 8y) =
- 3.(4x − 3y)(4x + 3y) =
- 4.(x − 9y)(3x − 2y) =
- 5.(2x² + 2x + 6)(x + 6) =
- 6.(3x + 5y)(3x + 2y) =
- 7.(x² + x + 3)(2x + 9) =
- 8.(3x² + 4x + 8)(3x − 6) =
- 9.(2x² + 3x + 8)(2x + 3) =
- 10.(2x² + x + 2)(3x + 5) =
- 11.(3x² − 5x + 1)(x + 3) =
- 12.(2x + 2y)(2x + y) =
- 13.(4x − 9y)(2x + 9y) =
- 14.(5x + 4y)(x + 6y) =
- 15.(4x − 2y)(x − 3y) =
- 16.(x − 5y)(x − 8y) =
- 17.(2x² − 2x + 9)(3x + 7) =
- 18.(2x + 2y)(2x + 2y) =
- 19.(3x + y)(4x + 2y) =
- 20.(3x² + x + 3)(3x + 8) =
- 21.(2x + 6y)(x + 7y) =
- 22.(3x² + 4x − 4)(2x − 5) =
- 23.(2x² − x − 7)(2x + 1) =
- 24.(2x² − x + 3)(3x + 9) =
- 25.(x + 2y)(4x − 8y) =
- 26.(3x + 9y)(2x + 6y) =
- 27.(3x² + 4x − 3)(x + 3) =
- 28.(x + 2y)(2x + 4y) =
- 29.(2x² + 3x + 4)(2x + 9) =
- 30.(x² + x + 7)(2x + 8) =
- 31.(2x² + 5x + 3)(2x + 2) =
- 32.(x² + 2x + 9)(2x − 7) =
- 33.(x² + 2x + 9)(2x + 7) =
- 34.(2x² + 3x + 4)(3x + 9) =
- 35.(3x² + 3x + 1)(3x − 1) =
- 36.(3x² − 4x + 4)(3x − 2) =
- 37.(x + 2y)(2x + 4y) =
- 38.(x² − 4x + 5)(2x − 8) =
- 39.(x² + x + 6)(3x + 5) =
- 40.(2x − 5y)(2x − 6y) =
Answer key
- 2x³ + 7x² + x − 4
- 3x² − 2xy − 16y²
- 16x² − 9y²
- 3x² − 29xy + 18y²
- 2x³ + 14x² + 18x + 36
- 9x² + 21xy + 10y²
- 2x³ + 11x² + 15x + 27
- 9x³ − 6x² − 48
- 4x³ + 12x² + 25x + 24
- 6x³ + 13x² + 11x + 10
- 3x³ + 4x² − 14x + 3
- 4x² + 6xy + 2y²
- 8x² + 18xy − 81y²
- 5x² + 34xy + 24y²
- 4x² − 14xy + 6y²
- x² − 13xy + 40y²
- 6x³ + 8x² + 13x + 63
- 4x² + 8xy + 4y²
- 12x² + 10xy + 2y²
- 9x³ + 27x² + 17x + 24
- 2x² + 20xy + 42y²
- 6x³ − 7x² − 28x + 20
- 4x³ − 15x − 7
- 6x³ + 15x² + 27
- 4x² − 16y²
- 6x² + 36xy + 54y²
- 3x³ + 13x² + 9x − 9
- 2x² + 8xy + 8y²
- 4x³ + 24x² + 35x + 36
- 2x³ + 10x² + 22x + 56
- 4x³ + 14x² + 16x + 6
- 2x³ − 3x² + 4x − 63
- 2x³ + 11x² + 32x + 63
- 6x³ + 27x² + 39x + 36
- 9x³ + 6x² − 1
- 9x³ − 18x² + 20x − 8
- 2x² + 8xy + 8y²
- 2x³ − 16x² + 42x − 40
- 3x³ + 8x² + 23x + 30
- 4x² − 22xy + 30y²
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