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Published byTrevor Higgins Modified over 5 years ago
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Warm up (12x2 + 8x – 6) – (9x2 – 2x + 5) Find the area and perimeter
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Questions over hw?
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GCF What does it stand for? What is it?
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What is the greatest common factor??
36 1, 2, 3, 4, 6, 9, 12, 18, 36 24 1, 2, 3, 4, 6, 8, 12, 24 The number 12
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What is the greatest common factor??
35 1, 5, 7 The number 5
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What is the greatest common factor??
3y 1, y -8xy 1, 2, 4, 8 x y y
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What is the greatest common factor??
22x2 1, 2, 11, xx -11x -1, x 11x
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What is the greatest common factor??
-4x6 -x4 -2x2 -1, 2, xxxxxx -1 xxxx -1, 2 xx -x2
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What is the greatest common factor??
8x3y5 -20x5y3 12x7y6 1, 2, 4, xxx yyyyy -1, 2, 4, 5, 10, xxxxx yyy 1, 2, 3, 4, 6, 12 xxxxxxx yyyyyy 4x3y3
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What is the greatest common factor??
x5 2 y xxxxx 1, 2 y PRIME
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Factoring means to write as a product
Always look for a Greatest Common Factor 1st. Factor 4x + 6y What is their greatest common factor? = 2( ) 2x + 3y Now, DIVIDE each term by the GCF.
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Now, DIVIDE each term by the GCF.
Factor 8a3 + 4a2 + 12a What is their GCF? = 4a( ) 2a2 + a + 3 Now, DIVIDE each term by the GCF. 40x2 – 100xy – 80y2 = 20( ) 2x2 – 5xy – 4y2
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Now, DIVIDE each term by the GCF.
Factor 2h2k + 2k What is their GCF? = 2k( ) h2 + 1 Now, DIVIDE each term by the GCF. 12x5y2 + 9x4y2 - 6x3y2 = 3x3y2( ) 4x2 + 3x – 2
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CW/HW GCF Practice
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