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Homework Unit 8 Day 3
Factoring by GCF
Factor each polynomial. Check your answer. 1. x2  5x x(___ ___) 2. 5m3  45 ___ (___  9) 3. 15y3  20y5  10 ___ (3y3  4___ ___)

4. 10y2  12y3
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5. 12t 5  6t
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6. 6x4  15x3  3x2
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7. A golf ball is hit upward at a speed of 40 m/s. The expression 5t2  40t gives the approximate height of the ball after t seconds. Factor this expression. ______________________________________

8. The area of the Hillen family’s television screen is 3x2  24x in2. Factor this polynomial to find expressions for the dimensions of their TV screen.

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Factor out the common binomial factor in each expression. 9. 4d(d  2)  9(d  2) ________________________________________

10. 12(x  5)  7x(x  5)
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Factor each polynomial. Check your answer. 11. 8c2  7c 12. 3n3  12n2 13. 15x5  18x

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Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.

Holt McDougal Algebra 1

Name _______________________________________ Date __________________ Class __________________

14.8s4  20t3  28

15. 6n6  18n4  24n

16. 5m4  5m3  5m2

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17. A ball is hit vertically into the air using a paddle at a speed of 32 ft/sec. The expression 16t2  32t gives the ball’s height after t seconds. Factor this expression.

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18. The area of Margo’s laptop computer screen is 12x2  3x in2. Factor this polynomial to find expressions for the dimensions of her computer screen.

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