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 − 2x + 4)(x − 3) =
- 2.(x − 7y)(3x + 6y) =
- 3.(x² + x + 6)(x + 1) =
- 4.(2x² + 5x − 4)(3x − 6) =
- 5.(2x² + 3x + 7)(x − 5) =
- 6.(4x − y)(3x + y) =
- 7.(3x² + 2x + 2)(3x + 1) =
- 8.(2x² + x + 2)(2x + 9) =
- 9.(x² + 4x + 6)(2x − 6) =
- 10.(2x² + 4x + 4)(3x + 4) =
- 11.(x² + 2x + 8)(x − 2) =
- 12.(2x² + x − 6)(3x + 6) =
- 13.(5x − 3y)(4x − 2y) =
- 14.(x² − 2x + 9)(x − 6) =
- 15.(2x² + x − 6)(2x − 3) =
- 16.(2x² + 5x + 1)(x + 7) =
- 17.(x² + 4x − 3)(2x + 4) =
- 18.(3x + 8y)(2x − 7y) =
- 19.(2x + 3y)(4x + 2y) =
- 20.(x² − 2x + 6)(3x + 6) =
- 21.(2x + 7y)(2x − y) =
- 22.(x + 8y)(4x + 9y) =
- 23.(5x + 4y)(3x + 9y) =
- 24.(2x² + 3x + 4)(2x + 4) =
- 25.(3x² + 5x − 6)(2x + 5) =
- 26.(5x + 3y)(5x − y) =
- 27.(x² + 3x + 8)(3x − 9) =
- 28.(x² + x + 5)(2x + 2) =
- 29.(2x² + 5x + 7)(3x + 6) =
- 30.(x + y)(x + 2y) =
- 31.(x² + 2x + 9)(2x + 9) =
- 32.(x − 8y)(x − 9y) =
- 33.(2x² + 3x + 7)(x + 9) =
- 34.(2x² + 4x − 4)(3x + 6) =
- 35.(2x² − 4x + 3)(2x + 5) =
- 36.(2x² + 3x + 8)(3x + 7) =
- 37.(2x² + x − 4)(x + 7) =
- 38.(2x² + 4x + 7)(2x + 7) =
- 39.(2x + y)(2x + 5y) =
- 40.(x² − 2x + 4)(2x + 9) =
Answer key
- x³ − 5x² + 10x − 12
- 3x² − 15xy − 42y²
- x³ + 2x² + 7x + 6
- 6x³ + 3x² − 42x + 24
- 2x³ − 7x² − 8x − 35
- 12x² + xy − y²
- 9x³ + 9x² + 8x + 2
- 4x³ + 20x² + 13x + 18
- 2x³ + 2x² − 12x − 36
- 6x³ + 20x² + 28x + 16
- x³ + 4x − 16
- 6x³ + 15x² − 12x − 36
- 20x² − 22xy + 6y²
- x³ − 8x² + 21x − 54
- 4x³ − 4x² − 15x + 18
- 2x³ + 19x² + 36x + 7
- 2x³ + 12x² + 10x − 12
- 6x² − 5xy − 56y²
- 8x² + 16xy + 6y²
- 3x³ + 6x + 36
- 4x² + 12xy − 7y²
- 4x² + 41xy + 72y²
- 15x² + 57xy + 36y²
- 4x³ + 14x² + 20x + 16
- 6x³ + 25x² + 13x − 30
- 25x² + 10xy − 3y²
- 3x³ − 3x − 72
- 2x³ + 4x² + 12x + 10
- 6x³ + 27x² + 51x + 42
- x² + 3xy + 2y²
- 2x³ + 13x² + 36x + 81
- x² − 17xy + 72y²
- 2x³ + 21x² + 34x + 63
- 6x³ + 24x² + 12x − 24
- 4x³ + 2x² − 14x + 15
- 6x³ + 23x² + 45x + 56
- 2x³ + 15x² + 3x − 28
- 4x³ + 22x² + 42x + 49
- 4x² + 12xy + 5y²
- 2x³ + 5x² − 10x + 36
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