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.(3x² − 4x + 1)(2x + 1) =
- 2.(2x² − 3x − 8)(x + 2) =
- 3.(3x² + 3x − 2)(2x − 7) =
- 4.(3x² + 2x + 1)(2x + 3) =
- 5.(3x − y)(2x + 9y) =
- 6.(2x + 7y)(3x + 9y) =
- 7.(2x² + 2x + 4)(x − 9) =
- 8.(5x + 6y)(x + y) =
- 9.(5x + 2y)(3x − 7y) =
- 10.(x² + 5x − 2)(x + 3) =
- 11.(5x + 2y)(4x − 2y) =
- 12.(x² − 4x + 4)(x − 6) =
- 13.(x² − x + 6)(3x + 1) =
- 14.(x² + x + 5)(x + 4) =
- 15.(5x + 7y)(4x − 8y) =
- 16.(3x² − 2x + 6)(2x − 7) =
- 17.(3x² − 4x + 4)(3x + 2) =
- 18.(3x + 5y)(4x − 3y) =
- 19.(5x + 3y)(2x + 8y) =
- 20.(x² + 4x + 7)(x + 1) =
- 21.(3x² + x + 4)(x + 9) =
- 22.(x² + 4x − 1)(2x + 1) =
- 23.(x + 4y)(5x + 8y) =
- 24.(x + 8y)(2x + 5y) =
- 25.(2x² − 4x − 8)(x + 5) =
- 26.(x − 5y)(5x + 4y) =
- 27.(x² − 4x + 5)(2x − 5) =
- 28.(x² + 4x + 4)(x + 9) =
- 29.(3x² − 2x + 8)(3x + 6) =
- 30.(3x² + 2x + 4)(2x − 1) =
- 31.(3x² − 5x + 2)(x + 5) =
- 32.(x² + 2x + 3)(3x + 8) =
- 33.(x + y)(x + 8y) =
- 34.(3x² − 2x + 3)(2x + 9) =
- 35.(2x² + 5x − 5)(2x + 7) =
- 36.(x² + 3x + 7)(2x + 4) =
- 37.(x² + 5x − 6)(x + 3) =
- 38.(2x² + 3x − 5)(2x + 7) =
- 39.(2x − 9y)(2x + 7y) =
- 40.(x² + x + 3)(3x + 5) =
Answer key
- 6x³ − 5x² − 2x + 1
- 2x³ + x² − 14x − 16
- 6x³ − 15x² − 25x + 14
- 6x³ + 13x² + 8x + 3
- 6x² + 25xy − 9y²
- 6x² + 39xy + 63y²
- 2x³ − 16x² − 14x − 36
- 5x² + 11xy + 6y²
- 15x² − 29xy − 14y²
- x³ + 8x² + 13x − 6
- 20x² − 2xy − 4y²
- x³ − 10x² + 28x − 24
- 3x³ − 2x² + 17x + 6
- x³ + 5x² + 9x + 20
- 20x² − 12xy − 56y²
- 6x³ − 25x² + 26x − 42
- 9x³ − 6x² + 4x + 8
- 12x² + 11xy − 15y²
- 10x² + 46xy + 24y²
- x³ + 5x² + 11x + 7
- 3x³ + 28x² + 13x + 36
- 2x³ + 9x² + 2x − 1
- 5x² + 28xy + 32y²
- 2x² + 21xy + 40y²
- 2x³ + 6x² − 28x − 40
- 5x² − 21xy − 20y²
- 2x³ − 13x² + 30x − 25
- x³ + 13x² + 40x + 36
- 9x³ + 12x² + 12x + 48
- 6x³ + x² + 6x − 4
- 3x³ + 10x² − 23x + 10
- 3x³ + 14x² + 25x + 24
- x² + 9xy + 8y²
- 6x³ + 23x² − 12x + 27
- 4x³ + 24x² + 25x − 35
- 2x³ + 10x² + 26x + 28
- x³ + 8x² + 9x − 18
- 4x³ + 20x² + 11x − 35
- 4x² − 4xy − 63y²
- 3x³ + 8x² + 14x + 15
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