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.(2x − y)(3x + 9y) =
- 2.(2x² + 2x − 5)(x − 9) =
- 3.(2x² + x − 6)(x − 1) =
- 4.(x + 8y)(5x + 3y) =
- 5.(3x − 2y)(2x + 6y) =
- 6.(3x − y)(4x + y) =
- 7.(2x − 5y)(4x + 4y) =
- 8.(2x² + 3x + 5)(x − 9) =
- 9.(x + 5y)(3x + 7y) =
- 10.(5x + y)(x − 3y) =
- 11.(5x + 3y)(3x + 8y) =
- 12.(x² + 4x − 8)(2x + 7) =
- 13.(3x² − 3x − 9)(2x + 3) =
- 14.(3x² + 4x + 8)(x + 3) =
- 15.(x² + 5x − 3)(x + 1) =
- 16.(2x + 8y)(2x + y) =
- 17.(2x² + 3x + 7)(3x + 2) =
- 18.(3x² + x + 5)(2x + 7) =
- 19.(3x² + 2x − 4)(x − 3) =
- 20.(2x² − x − 6)(3x + 5) =
- 21.(3x² − 3x + 3)(x + 7) =
- 22.(3x² − x + 3)(3x + 5) =
- 23.(x² + 2x + 7)(2x − 1) =
- 24.(3x² − 3x + 8)(3x + 7) =
- 25.(3x − 3y)(4x + 6y) =
- 26.(x² − 5x + 3)(3x + 5) =
- 27.(2x² + x + 5)(3x + 3) =
- 28.(5x + 9y)(5x + 7y) =
- 29.(2x² + 2x + 9)(x + 7) =
- 30.(2x + 8y)(3x − 7y) =
- 31.(4x + 5y)(4x + 9y) =
- 32.(2x² + 4x − 3)(2x + 8) =
- 33.(x² + x + 1)(2x + 9) =
- 34.(2x² + 2x + 7)(2x + 5) =
- 35.(5x − 8y)(3x − y) =
- 36.(3x² + 2x − 2)(x − 1) =
- 37.(x + 8y)(5x + 5y) =
- 38.(2x + 7y)(x − 7y) =
- 39.(3x² + 3x + 3)(2x + 3) =
- 40.(2x + y)(4x + 5y) =
Answer key
- 6x² + 15xy − 9y²
- 2x³ − 16x² − 23x + 45
- 2x³ − x² − 7x + 6
- 5x² + 43xy + 24y²
- 6x² + 14xy − 12y²
- 12x² − xy − y²
- 8x² − 12xy − 20y²
- 2x³ − 15x² − 22x − 45
- 3x² + 22xy + 35y²
- 5x² − 14xy − 3y²
- 15x² + 49xy + 24y²
- 2x³ + 15x² + 12x − 56
- 6x³ + 3x² − 27x − 27
- 3x³ + 13x² + 20x + 24
- x³ + 6x² + 2x − 3
- 4x² + 18xy + 8y²
- 6x³ + 13x² + 27x + 14
- 6x³ + 23x² + 17x + 35
- 3x³ − 7x² − 10x + 12
- 6x³ + 7x² − 23x − 30
- 3x³ + 18x² − 18x + 21
- 9x³ + 12x² + 4x + 15
- 2x³ + 3x² + 12x − 7
- 9x³ + 12x² + 3x + 56
- 12x² + 6xy − 18y²
- 3x³ − 10x² − 16x + 15
- 6x³ + 9x² + 18x + 15
- 25x² + 80xy + 63y²
- 2x³ + 16x² + 23x + 63
- 6x² + 10xy − 56y²
- 16x² + 56xy + 45y²
- 4x³ + 24x² + 26x − 24
- 2x³ + 11x² + 11x + 9
- 4x³ + 14x² + 24x + 35
- 15x² − 29xy + 8y²
- 3x³ − x² − 4x + 2
- 5x² + 45xy + 40y²
- 2x² − 7xy − 49y²
- 6x³ + 15x² + 15x + 9
- 8x² + 14xy + 5y²
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