Sec 1.9-FocusAns

# Sec 1.9-FocusAns - 2w 4 a 42k 2 b 24c c 28p 2 d 9x 2 e 48c...

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Section 1.9 Focus Exercise Answers 1. Term Coefficient Variable Cluster Term Coefficient Variable Cluster a) - 5p 4 q 3 - 5 p 4 q 3 b) - 2w - 2 w c) 3 4 x y 2 3 4 x y 2 d) x 2 1 x 2 e) - x 0 - 1 x 0 f) - 9 - 9 (none) 2. a) - 6x 3 , + 4x, and - 1 b) x 2 , - 5x, and + 8 c) 2x 5 , - 3x 4 , - 5 4 x, and + 12 d) 7x 3 , - 6x 2 y, + xy 2 , and - 4y 3 3. a) 7b 3 b) - 7b c) 0 d) - 2y e) - 4n f) cannot combine g) - 3h h) - 3h 2 i) - 4x 3 r j) cannot combine k) 0
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Unformatted text preview: - 2w 4. a) 42k 2 b) - 24c c) - 28p 2 d) 9x 2 e) - 48c f) - 12mk g) 56x 4 h) - 2x i) - 30n j) - y 2 k) - c 2 l) x 2 m) - 10y n) - 30c o) 20x 5. a) 35x – 40 b) 8 – 16v c) 54m – 30 d) 24x – 21y e) - 30x – 48 f) - 7y + 28 g) 15 – 35w h) 16p + 18d i) x 2 + 4x j) 6y 2 – 20y k) - 3a 2 – 3a l) - 4y 4 + 28y 2 m) - 35m 2 – 5m n) - 9m + 6x o) 5k 2 + 6k p) 7p 2 – 21p...
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