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.(3x² + 2x + 4)(2x + 1) =
- 3.(x² − 2x − 4)(3x − 5) =
- 4.(5x + 9y)(3x + 8y) =
- 5.(3x² + 5x + 9)(3x − 1) =
- 6.(4x + 7y)(4x − y) =
- 7.(2x² + 4x + 1)(x − 1) =
- 8.(x² + 5x + 6)(2x + 3) =
- 9.(3x² + 2x − 4)(3x − 1) =
- 10.(2x² + 4x − 8)(x + 4) =
- 11.(5x + 5y)(2x + 4y) =
- 12.(2x² − x + 2)(x + 2) =
- 13.(5x − 2y)(2x − 7y) =
- 14.(3x² + 3x − 8)(3x + 2) =
- 15.(2x − 9y)(x + y) =
- 16.(x + 2y)(x + 8y) =
- 17.(2x² + 3x + 1)(x + 3) =
- 18.(5x + 2y)(x + 9y) =
- 19.(5x + 4y)(x + 9y) =
- 20.(2x² + 3x − 9)(2x + 9) =
- 21.(x² − 3x + 5)(2x + 4) =
- 22.(2x² + 2x + 1)(x + 6) =
- 23.(2x² − x + 3)(x + 1) =
- 24.(2x² + 2x + 5)(3x + 9) =
- 25.(3x² + 3x − 1)(2x + 1) =
- 26.(5x + 6y)(x + 3y) =
- 27.(3x² + 2x − 4)(3x + 6) =
- 28.(5x + 8y)(x + 5y) =
- 29.(3x² − x + 2)(x + 7) =
- 30.(2x + 4y)(x − 2y) =
- 31.(3x² − 3x + 1)(x + 6) =
- 32.(x − 2y)(5x + 8y) =
- 33.(4x − 6y)(2x + 3y) =
- 34.(3x − 7y)(x − 2y) =
- 35.(2x + y)(5x + 4y) =
- 36.(x² + x − 7)(2x − 9) =
- 37.(3x² − 2x − 2)(x + 3) =
- 38.(3x + 2y)(5x − 9y) =
- 39.(x² + x + 2)(2x + 8) =
- 40.(4x − y)(x − y) =
Answer key
- 4x² + 16xy − 48y²
- 6x³ + 7x² + 10x + 4
- 3x³ − 11x² − 2x + 20
- 15x² + 67xy + 72y²
- 9x³ + 12x² + 22x − 9
- 16x² + 24xy − 7y²
- 2x³ + 2x² − 3x − 1
- 2x³ + 13x² + 27x + 18
- 9x³ + 3x² − 14x + 4
- 2x³ + 12x² + 8x − 32
- 10x² + 30xy + 20y²
- 2x³ + 3x² + 4
- 10x² − 39xy + 14y²
- 9x³ + 15x² − 18x − 16
- 2x² − 7xy − 9y²
- x² + 10xy + 16y²
- 2x³ + 9x² + 10x + 3
- 5x² + 47xy + 18y²
- 5x² + 49xy + 36y²
- 4x³ + 24x² + 9x − 81
- 2x³ − 2x² − 2x + 20
- 2x³ + 14x² + 13x + 6
- 2x³ + x² + 2x + 3
- 6x³ + 24x² + 33x + 45
- 6x³ + 9x² + x − 1
- 5x² + 21xy + 18y²
- 9x³ + 24x² − 24
- 5x² + 33xy + 40y²
- 3x³ + 20x² − 5x + 14
- 2x² − 8y²
- 3x³ + 15x² − 17x + 6
- 5x² − 2xy − 16y²
- 8x² − 18y²
- 3x² − 13xy + 14y²
- 10x² + 13xy + 4y²
- 2x³ − 7x² − 23x + 63
- 3x³ + 7x² − 8x − 6
- 15x² − 17xy − 18y²
- 2x³ + 10x² + 12x + 16
- 4x² − 5xy + y²
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