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.(x² + 4x − 9)(x + 1) =
- 2.(x² + 5x + 8)(x + 9) =
- 3.(x − 3y)(2x + 7y) =
- 4.(2x² + 5x + 2)(2x + 4) =
- 5.(4x − 2y)(2x + y) =
- 6.(x + 7y)(3x + 9y) =
- 7.(3x² + x + 6)(2x + 5) =
- 8.(4x + 8y)(x + 5y) =
- 9.(x² − 2x + 9)(3x + 4) =
- 10.(3x − 9y)(3x + 6y) =
- 11.(2x + 5y)(5x − 8y) =
- 12.(x² + x − 6)(x − 3) =
- 13.(2x² − 2x + 4)(x − 4) =
- 14.(3x − 4y)(x + 5y) =
- 15.(3x² + 3x + 6)(3x + 7) =
- 16.(4x − 8y)(x + 8y) =
- 17.(x² + 5x − 7)(x − 1) =
- 18.(x + 6y)(5x + 7y) =
- 19.(2x² + 2x − 5)(x + 6) =
- 20.(3x² + x − 5)(3x + 5) =
- 21.(2x + y)(x + 7y) =
- 22.(3x² − 4x + 8)(2x + 4) =
- 23.(3x + y)(3x + 4y) =
- 24.(2x² − x + 7)(2x − 5) =
- 25.(x² − x + 2)(3x + 5) =
- 26.(4x − 9y)(4x + y) =
- 27.(4x + y)(5x + 3y) =
- 28.(5x − 9y)(x + 6y) =
- 29.(x² + x − 4)(x + 2) =
- 30.(3x² + x + 2)(2x + 3) =
- 31.(5x + 7y)(x − y) =
- 32.(3x² + x − 5)(x − 4) =
- 33.(x² + x + 8)(2x − 9) =
- 34.(x − 9y)(2x + 8y) =
- 35.(x² + x − 8)(x + 4) =
- 36.(2x² + 4x + 7)(x − 4) =
- 37.(3x² + 4x + 1)(2x + 4) =
- 38.(2x² + 3x + 9)(3x + 3) =
- 39.(x² + 5x + 5)(x + 2) =
- 40.(2x² + 4x + 5)(x + 3) =
Answer key
- x³ + 5x² − 5x − 9
- x³ + 14x² + 53x + 72
- 2x² + xy − 21y²
- 4x³ + 18x² + 24x + 8
- 8x² − 2y²
- 3x² + 30xy + 63y²
- 6x³ + 17x² + 17x + 30
- 4x² + 28xy + 40y²
- 3x³ − 2x² + 19x + 36
- 9x² − 9xy − 54y²
- 10x² + 9xy − 40y²
- x³ − 2x² − 9x + 18
- 2x³ − 10x² + 12x − 16
- 3x² + 11xy − 20y²
- 9x³ + 30x² + 39x + 42
- 4x² + 24xy − 64y²
- x³ + 4x² − 12x + 7
- 5x² + 37xy + 42y²
- 2x³ + 14x² + 7x − 30
- 9x³ + 18x² − 10x − 25
- 2x² + 15xy + 7y²
- 6x³ + 4x² + 32
- 9x² + 15xy + 4y²
- 4x³ − 12x² + 19x − 35
- 3x³ + 2x² + x + 10
- 16x² − 32xy − 9y²
- 20x² + 17xy + 3y²
- 5x² + 21xy − 54y²
- x³ + 3x² − 2x − 8
- 6x³ + 11x² + 7x + 6
- 5x² + 2xy − 7y²
- 3x³ − 11x² − 9x + 20
- 2x³ − 7x² + 7x − 72
- 2x² − 10xy − 72y²
- x³ + 5x² − 4x − 32
- 2x³ − 4x² − 9x − 28
- 6x³ + 20x² + 18x + 4
- 6x³ + 15x² + 36x + 27
- x³ + 7x² + 15x + 10
- 2x³ + 10x² + 17x + 15
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