Multiplying Polynomials
1. Calculate and find the degree of:
3x2(-4y3x5)= -12x7y3
Degree = 10
2. Use the distributive property to find:
2x(4 – 5x) = -10x2 + 8x
Use any method to find:
3. (x – 1) (x – 4) =
x2 – 5x + 4
4. (2x – 2)(x + 3) =
4x2 + 4x - 6
5. (1 – 4x)(3x – 2) =
-12x2 -5x -2
6. (x + y)(3x – y) =
3x2 + 2xy – y2
7. 3x(2x – 1)(x + 2) =
6x3 + 9x2 -6x
8. (x2 – 1)(3x + 4) =
3x3 + 4x2 -3x - 4
9. (x – 2)(x – 1)(3x + 1) =
(x2 – 3x + 2)(3x + 1) =
3x3 -8x2 +3x +2
10. (x2 – 3x + 4)(x + 5) =
x3 +5x2 -3x2 + 4x – 15x + 20 = x3 + 2x2 -11x + 20