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 + 3x − 8)(x + 2) =
- 2.(2x² + 3x + 6)(2x − 5) =
- 3.(x² + 3x + 1)(x + 3) =
- 4.(x² − 3x + 8)(2x + 1) =
- 5.(4x − 8y)(3x + 9y) =
- 6.(3x² + 4x − 5)(2x + 7) =
- 7.(2x² + 2x + 5)(2x + 7) =
- 8.(2x² + 3x + 9)(3x − 2) =
- 9.(x² + x − 6)(2x − 2) =
- 10.(x² + 4x − 3)(x + 5) =
- 11.(2x + 5y)(4x + y) =
- 12.(x² + 4x + 2)(x + 3) =
- 13.(3x² + 4x + 3)(x + 8) =
- 14.(x² − x + 3)(x + 1) =
- 15.(3x² + 4x − 9)(2x + 7) =
- 16.(2x² − 2x − 3)(3x + 6) =
- 17.(3x + 4y)(5x + 5y) =
- 18.(3x² + 3x + 8)(2x + 1) =
- 19.(2x + y)(x + 5y) =
- 20.(3x² + 3x + 9)(2x + 1) =
- 21.(4x − y)(3x + y) =
- 22.(x + 2y)(5x + 2y) =
- 23.(2x² + 4x − 9)(2x + 2) =
- 24.(3x + 5y)(x + 2y) =
- 25.(5x + 6y)(4x + 3y) =
- 26.(5x − 9y)(x − y) =
- 27.(2x² − 4x − 9)(2x + 3) =
- 28.(3x² + 2x + 4)(3x + 9) =
- 29.(4x + y)(3x + 9y) =
- 30.(x² + 5x + 6)(2x + 6) =
- 31.(x² + 4x + 1)(2x + 8) =
- 32.(x² − 2x + 4)(2x + 2) =
- 33.(4x − 3y)(3x − 3y) =
- 34.(x − 2y)(x − 7y) =
- 35.(x² + x − 4)(x + 7) =
- 36.(2x + y)(4x + 8y) =
- 37.(x² − 5x + 1)(2x + 6) =
- 38.(x + 9y)(5x + 9y) =
- 39.(x + 6y)(5x + 2y) =
- 40.(3x² − 2x + 1)(3x + 1) =
Answer key
- 2x³ + 7x² − 2x − 16
- 4x³ − 4x² − 3x − 30
- x³ + 6x² + 10x + 3
- 2x³ − 5x² + 13x + 8
- 12x² + 12xy − 72y²
- 6x³ + 29x² + 18x − 35
- 4x³ + 18x² + 24x + 35
- 6x³ + 5x² + 21x − 18
- 2x³ − 14x + 12
- x³ + 9x² + 17x − 15
- 8x² + 22xy + 5y²
- x³ + 7x² + 14x + 6
- 3x³ + 28x² + 35x + 24
- x³ + 2x + 3
- 6x³ + 29x² + 10x − 63
- 6x³ + 6x² − 21x − 18
- 15x² + 35xy + 20y²
- 6x³ + 9x² + 19x + 8
- 2x² + 11xy + 5y²
- 6x³ + 9x² + 21x + 9
- 12x² + xy − y²
- 5x² + 12xy + 4y²
- 4x³ + 12x² − 10x − 18
- 3x² + 11xy + 10y²
- 20x² + 39xy + 18y²
- 5x² − 14xy + 9y²
- 4x³ − 2x² − 30x − 27
- 9x³ + 33x² + 30x + 36
- 12x² + 39xy + 9y²
- 2x³ + 16x² + 42x + 36
- 2x³ + 16x² + 34x + 8
- 2x³ − 2x² + 4x + 8
- 12x² − 21xy + 9y²
- x² − 9xy + 14y²
- x³ + 8x² + 3x − 28
- 8x² + 20xy + 8y²
- 2x³ − 4x² − 28x + 6
- 5x² + 54xy + 81y²
- 5x² + 32xy + 12y²
- 9x³ − 3x² + x + 1
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