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 − x + 1)(2x + 1) =
- 2.(x² + 2x + 8)(x − 4) =
- 3.(x² + x + 6)(2x + 2) =
- 4.(2x² + 3x − 3)(2x + 6) =
- 5.(2x² − 2x + 8)(3x + 4) =
- 6.(x − y)(x + 6y) =
- 7.(3x + 8y)(2x + 9y) =
- 8.(x² + 4x − 9)(2x − 1) =
- 9.(2x² + x + 1)(2x + 1) =
- 10.(2x² − x + 1)(x + 8) =
- 11.(x² − 2x + 7)(x + 3) =
- 12.(x² + 2x + 8)(x + 8) =
- 13.(2x + 3y)(2x + y) =
- 14.(x + 3y)(x + 3y) =
- 15.(3x² − 2x + 7)(x + 9) =
- 16.(2x² + 2x + 1)(2x − 5) =
- 17.(x − 5y)(2x − 9y) =
- 18.(2x² + x − 1)(x + 2) =
- 19.(2x² − x − 1)(3x + 3) =
- 20.(4x + 8y)(4x − 7y) =
- 21.(x − 2y)(3x + 4y) =
- 22.(3x² + 3x + 9)(3x − 9) =
- 23.(x² + 5x + 7)(x + 3) =
- 24.(x² + 5x + 9)(3x − 4) =
- 25.(3x² + 3x + 3)(3x + 2) =
- 26.(x + 9y)(x + 5y) =
- 27.(x + y)(5x + y) =
- 28.(2x² + 4x − 2)(3x + 6) =
- 29.(2x² − 4x − 5)(x − 9) =
- 30.(2x + y)(5x + 8y) =
- 31.(3x² + 5x + 6)(x + 1) =
- 32.(3x² + 5x − 8)(3x − 4) =
- 33.(5x + 6y)(x + 2y) =
- 34.(4x − 7y)(2x − 5y) =
- 35.(3x² − 2x + 4)(2x + 8) =
- 36.(x² − 5x − 3)(x − 5) =
- 37.(3x² + 5x − 5)(x + 7) =
- 38.(4x + 2y)(x + y) =
- 39.(2x² − 4x + 5)(2x + 4) =
- 40.(5x + y)(4x − 8y) =
Answer key
- 4x³ + x + 1
- x³ − 2x² − 32
- 2x³ + 4x² + 14x + 12
- 4x³ + 18x² + 12x − 18
- 6x³ + 2x² + 16x + 32
- x² + 5xy − 6y²
- 6x² + 43xy + 72y²
- 2x³ + 7x² − 22x + 9
- 4x³ + 4x² + 3x + 1
- 2x³ + 15x² − 7x + 8
- x³ + x² + x + 21
- x³ + 10x² + 24x + 64
- 4x² + 8xy + 3y²
- x² + 6xy + 9y²
- 3x³ + 25x² − 11x + 63
- 4x³ − 6x² − 8x − 5
- 2x² − 19xy + 45y²
- 2x³ + 5x² + x − 2
- 6x³ + 3x² − 6x − 3
- 16x² + 4xy − 56y²
- 3x² − 2xy − 8y²
- 9x³ − 18x² − 81
- x³ + 8x² + 22x + 21
- 3x³ + 11x² + 7x − 36
- 9x³ + 15x² + 15x + 6
- x² + 14xy + 45y²
- 5x² + 6xy + y²
- 6x³ + 24x² + 18x − 12
- 2x³ − 22x² + 31x + 45
- 10x² + 21xy + 8y²
- 3x³ + 8x² + 11x + 6
- 9x³ + 3x² − 44x + 32
- 5x² + 16xy + 12y²
- 8x² − 34xy + 35y²
- 6x³ + 20x² − 8x + 32
- x³ − 10x² + 22x + 15
- 3x³ + 26x² + 30x − 35
- 4x² + 6xy + 2y²
- 4x³ − 6x + 20
- 20x² − 36xy − 8y²
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