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.(5x + 4y)(x + 8y) =
- 2.(x + 9y)(x + 7y) =
- 3.(x² − 4x + 9)(x + 2) =
- 4.(x² + 4x + 4)(2x + 8) =
- 5.(x² + 2x + 8)(2x + 8) =
- 6.(x² + 2x − 7)(2x − 1) =
- 7.(x² − 2x − 2)(2x + 5) =
- 8.(2x² + 5x + 3)(3x + 7) =
- 9.(2x² + 4x + 3)(3x + 8) =
- 10.(x + 2y)(4x + 2y) =
- 11.(2x² + 3x + 2)(3x + 9) =
- 12.(4x + 6y)(4x + 4y) =
- 13.(3x − y)(4x − 4y) =
- 14.(2x² + 2x − 9)(2x + 3) =
- 15.(3x + 8y)(5x − 2y) =
- 16.(2x − y)(5x + 6y) =
- 17.(5x + 3y)(5x + 4y) =
- 18.(x² + 5x + 5)(x + 3) =
- 19.(2x² + 2x − 4)(2x + 1) =
- 20.(5x − 6y)(5x + 4y) =
- 21.(2x² − x − 6)(2x + 1) =
- 22.(x + 7y)(3x + y) =
- 23.(3x² + x − 8)(x + 1) =
- 24.(x − 6y)(3x + 3y) =
- 25.(2x − 7y)(x + 7y) =
- 26.(2x² − 4x − 6)(3x + 6) =
- 27.(3x² + 4x + 4)(x + 2) =
- 28.(4x − 6y)(4x + 9y) =
- 29.(4x + 7y)(4x − 6y) =
- 30.(x − 8y)(2x + 2y) =
- 31.(3x − 6y)(3x + 7y) =
- 32.(3x² − x + 4)(2x + 7) =
- 33.(x + 9y)(4x + 2y) =
- 34.(2x² + 5x + 2)(x + 9) =
- 35.(3x² − 5x + 7)(x + 3) =
- 36.(2x² + x + 4)(2x + 4) =
- 37.(2x² + x + 7)(x + 8) =
- 38.(3x² + 2x − 3)(3x − 2) =
- 39.(2x² + 2x − 5)(x + 6) =
- 40.(3x − 3y)(3x − 9y) =
Answer key
- 5x² + 44xy + 32y²
- x² + 16xy + 63y²
- x³ − 2x² + x + 18
- 2x³ + 16x² + 40x + 32
- 2x³ + 12x² + 32x + 64
- 2x³ + 3x² − 16x + 7
- 2x³ + x² − 14x − 10
- 6x³ + 29x² + 44x + 21
- 6x³ + 28x² + 41x + 24
- 4x² + 10xy + 4y²
- 6x³ + 27x² + 33x + 18
- 16x² + 40xy + 24y²
- 12x² − 16xy + 4y²
- 4x³ + 10x² − 12x − 27
- 15x² + 34xy − 16y²
- 10x² + 7xy − 6y²
- 25x² + 35xy + 12y²
- x³ + 8x² + 20x + 15
- 4x³ + 6x² − 6x − 4
- 25x² − 10xy − 24y²
- 4x³ − 13x − 6
- 3x² + 22xy + 7y²
- 3x³ + 4x² − 7x − 8
- 3x² − 15xy − 18y²
- 2x² + 7xy − 49y²
- 6x³ − 42x − 36
- 3x³ + 10x² + 12x + 8
- 16x² + 12xy − 54y²
- 16x² + 4xy − 42y²
- 2x² − 14xy − 16y²
- 9x² + 3xy − 42y²
- 6x³ + 19x² + x + 28
- 4x² + 38xy + 18y²
- 2x³ + 23x² + 47x + 18
- 3x³ + 4x² − 8x + 21
- 4x³ + 10x² + 12x + 16
- 2x³ + 17x² + 15x + 56
- 9x³ − 13x + 6
- 2x³ + 14x² + 7x − 30
- 9x² − 36xy + 27y²
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