PED-HSM11A2TR-08-1103-005-L01.indd
5.3 – Factoring Practice
Directions: Find the real or imaginary solutions of each equation by factoring. Show all of your work and be sure to simplify answers completely.
1. 2x3 + 54 = 0 2. x4 ( x =0
3. 4x3 ( 32 = 0 4. 3x4 + 18 = 21x2
5. 64x3 ( 1 = 0 6. x4 + 12x2 = 8x3
7. x2 ( 5x + 4 = 0 8. x4 ( 12x2 + 11 = 0
9. x5 = x3 + 12x 10. x4 ( 81 = 0
11. x4 ( 9x2 + 14 = 0 12. x4 + 13x2 + 36 = 0
13. 5x4 + 50x2 + 80 = 0 14. 2x4 ( 26x2 ( 28 = 0
Directions: Write an equation to model the situation. Then solve the equation by graphing (on your calculator).
15. The volume V of a container is 84 ft3. The width, the length, and the height are x, x + 1, and x ( 4 respectively. What are the container’s dimensions?
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