Basic Algebra 2 CH 5 Preview WS Date __________________ Name_____________________
Multiply the following:
1. 3x ( 2x ­ 5) 2. 4x ( x2 + 7x ­ 6) 3. (x + 4)(x ­ 8) 6x2 - 15x
4x3 + 28x2 -24x
x2 - 4x - 32
4. ( 2x ­ 3)(4x + 5) 5. ( x ­6)2 6. ( x ­ 6)( x2 + 4x + 7)
(x-6)(x-6)
8x2 - 2x - 15
x2 - 12x + 36
x3 + 4x2 + 7x
-6x2 - 24x-42
x3 - 2x2 -17x - 42
Factor the following: (Remember to look for common factors first!)
7. 3x2 + 9x 8. 4x2 ­ 12x 9. 25x3 ­ 100x2
3x (x + 3)
4x ( x - 3)
25x2 ( x - 4)
1
Factor the following:
10. x2 ­ 4x ­ 12 11. x2 ­ 9x ­ 22 12. x2 + 18x ­ 40
(x - 6)(x + 2)
(x - 11)(x + 2)
(x + 20)(x - 2)
13. x2 + 10x + 16 14. x2 ­ 15x + 50 15. x2 ­ 36
(x + 8)(x + 2)
(x - 5)(x -10)
(x - 6)(x + 6)
Take out common factors first!
16. 2x2 + 12x + 16 17. ­3x2 + 9x + 45 18. 2x3 + 16x2+ 30x
Use advanced factoring method to solve.
19. 3x2 +14x + 8 20. 2x2 +7x ­ 15 21. 4x2 ­ 19x ­ 5
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