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 − 3x + 5)(x + 5) =
- 2.(2x² + 2x + 8)(2x + 1) =
- 3.(3x² + 3x + 5)(2x + 7) =
- 4.(2x + 5y)(3x + 3y) =
- 5.(3x² + x + 5)(2x + 7) =
- 6.(4x − y)(2x + 4y) =
- 7.(3x² + 5x − 7)(3x − 2) =
- 8.(2x − 5y)(3x − 8y) =
- 9.(x² + 2x + 6)(3x + 3) =
- 10.(2x² + 2x − 4)(2x + 2) =
- 11.(x² − 4x − 3)(x + 7) =
- 12.(3x² − 5x + 8)(2x − 7) =
- 13.(2x² + x + 2)(x + 1) =
- 14.(x² − 2x + 6)(2x − 7) =
- 15.(x² − 5x + 7)(x + 1) =
- 16.(2x + 9y)(x − 9y) =
- 17.(4x + 4y)(x − 8y) =
- 18.(x² + x + 3)(x + 7) =
- 19.(x − y)(3x − 3y) =
- 20.(5x + 2y)(3x + 5y) =
- 21.(3x² + 5x + 8)(3x + 4) =
- 22.(x² + 2x + 3)(3x + 9) =
- 23.(2x² + 2x + 6)(x + 2) =
- 24.(2x + 7y)(5x + 4y) =
- 25.(x² + 2x + 4)(2x + 7) =
- 26.(3x² + x − 4)(2x − 7) =
- 27.(5x + y)(2x + 3y) =
- 28.(x + 8y)(2x − 4y) =
- 29.(x + 3y)(x + 4y) =
- 30.(3x² + x + 9)(2x + 5) =
- 31.(2x² + 3x + 4)(3x − 2) =
- 32.(5x + 8y)(2x − 8y) =
- 33.(3x² + x + 7)(x + 4) =
- 34.(2x² + 4x + 8)(x − 4) =
- 35.(4x + 2y)(2x − 4y) =
- 36.(2x² + 2x + 1)(3x + 1) =
- 37.(x² + 5x − 3)(3x − 3) =
- 38.(2x² − 4x + 3)(x + 1) =
- 39.(2x² + 3x + 6)(3x + 7) =
- 40.(5x − 8y)(3x − 2y) =
Answer key
- 3x³ + 12x² − 10x + 25
- 4x³ + 6x² + 18x + 8
- 6x³ + 27x² + 31x + 35
- 6x² + 21xy + 15y²
- 6x³ + 23x² + 17x + 35
- 8x² + 14xy − 4y²
- 9x³ + 9x² − 31x + 14
- 6x² − 31xy + 40y²
- 3x³ + 9x² + 24x + 18
- 4x³ + 8x² − 4x − 8
- x³ + 3x² − 31x − 21
- 6x³ − 31x² + 51x − 56
- 2x³ + 3x² + 3x + 2
- 2x³ − 11x² + 26x − 42
- x³ − 4x² + 2x + 7
- 2x² − 9xy − 81y²
- 4x² − 28xy − 32y²
- x³ + 8x² + 10x + 21
- 3x² − 6xy + 3y²
- 15x² + 31xy + 10y²
- 9x³ + 27x² + 44x + 32
- 3x³ + 15x² + 27x + 27
- 2x³ + 6x² + 10x + 12
- 10x² + 43xy + 28y²
- 2x³ + 11x² + 22x + 28
- 6x³ − 19x² − 15x + 28
- 10x² + 17xy + 3y²
- 2x² + 12xy − 32y²
- x² + 7xy + 12y²
- 6x³ + 17x² + 23x + 45
- 6x³ + 5x² + 6x − 8
- 10x² − 24xy − 64y²
- 3x³ + 13x² + 11x + 28
- 2x³ − 4x² − 8x − 32
- 8x² − 12xy − 8y²
- 6x³ + 8x² + 5x + 1
- 3x³ + 12x² − 24x + 9
- 2x³ − 2x² − x + 3
- 6x³ + 23x² + 39x + 42
- 15x² − 34xy + 16y²
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