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.(2x² + x + 6)(x − 1) =
- 2.(2x² − x − 1)(x − 3) =
- 3.(2x² + 2x − 4)(2x + 8) =
- 4.(2x² + 5x + 9)(x + 2) =
- 5.(2x² + 2x − 3)(2x + 2) =
- 6.(2x² + x + 2)(x − 8) =
- 7.(4x − 8y)(4x + y) =
- 8.(2x + 6y)(x + 8y) =
- 9.(3x² + 4x + 6)(2x + 8) =
- 10.(2x − y)(3x + 4y) =
- 11.(x² + 3x − 9)(2x − 5) =
- 12.(2x + y)(x − 4y) =
- 13.(4x + 4y)(2x − 2y) =
- 14.(2x + 5y)(4x + 6y) =
- 15.(2x² + 2x − 7)(x + 7) =
- 16.(x² + 2x − 8)(x + 5) =
- 17.(4x − 2y)(x + 8y) =
- 18.(x² + 4x − 5)(x + 8) =
- 19.(3x² − 3x + 3)(x − 8) =
- 20.(3x + 3y)(x + 6y) =
- 21.(3x² + 5x + 1)(x + 4) =
- 22.(3x + 3y)(x + 3y) =
- 23.(x² − 3x − 1)(3x + 9) =
- 24.(x + 3y)(x + 2y) =
- 25.(x² + 3x + 6)(2x + 7) =
- 26.(x² − x + 9)(2x + 1) =
- 27.(3x² − 3x − 8)(3x + 2) =
- 28.(5x + 7y)(4x + y) =
- 29.(x² + x + 6)(3x + 8) =
- 30.(2x² − 5x + 7)(x + 4) =
- 31.(3x² + 3x + 1)(x − 9) =
- 32.(x² + x + 8)(2x + 2) =
- 33.(2x² + 5x + 9)(2x − 6) =
- 34.(3x + 5y)(5x + 5y) =
- 35.(3x² + x + 8)(3x − 6) =
- 36.(x + 6y)(x + 3y) =
- 37.(x + 4y)(2x − 7y) =
- 38.(2x² − x + 1)(3x + 9) =
- 39.(5x + y)(5x + 8y) =
- 40.(3x² + 5x + 7)(2x + 4) =
Answer key
- 2x³ − x² + 5x − 6
- 2x³ − 7x² + 2x + 3
- 4x³ + 20x² + 8x − 32
- 2x³ + 9x² + 19x + 18
- 4x³ + 8x² − 2x − 6
- 2x³ − 15x² − 6x − 16
- 16x² − 28xy − 8y²
- 2x² + 22xy + 48y²
- 6x³ + 32x² + 44x + 48
- 6x² + 5xy − 4y²
- 2x³ + x² − 33x + 45
- 2x² − 7xy − 4y²
- 8x² − 8y²
- 8x² + 32xy + 30y²
- 2x³ + 16x² + 7x − 49
- x³ + 7x² + 2x − 40
- 4x² + 30xy − 16y²
- x³ + 12x² + 27x − 40
- 3x³ − 27x² + 27x − 24
- 3x² + 21xy + 18y²
- 3x³ + 17x² + 21x + 4
- 3x² + 12xy + 9y²
- 3x³ − 30x − 9
- x² + 5xy + 6y²
- 2x³ + 13x² + 33x + 42
- 2x³ − x² + 17x + 9
- 9x³ − 3x² − 30x − 16
- 20x² + 33xy + 7y²
- 3x³ + 11x² + 26x + 48
- 2x³ + 3x² − 13x + 28
- 3x³ − 24x² − 26x − 9
- 2x³ + 4x² + 18x + 16
- 4x³ − 2x² − 12x − 54
- 15x² + 40xy + 25y²
- 9x³ − 15x² + 18x − 48
- x² + 9xy + 18y²
- 2x² + xy − 28y²
- 6x³ + 15x² − 6x + 9
- 25x² + 45xy + 8y²
- 6x³ + 22x² + 34x + 28
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