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Perform the operation. (10x² - 7x + 7) - (4x² + 5x −9)​
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3 votes
Perform the operation.
(10x² - 7x + 7) - (4x² + 5x −9)​

User Denis Savenko
by
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2 Answers

5 votes

Answer:

Final answer is: 2(3x^2 - 6x + 8)

Explanation:

User Lobianco
by
7.3k points
3 votes
1) Distribute the -1 to get:
10x^2 - 7x + 7 - 4x^2 - 5x + 9

2) Add numbers to get:
10x^2 - 7x + 16 - 4x^2 - 5x

3) Combine the like terms to get:
6x^2 - 7x + 16 - 5x
6x^2 - 12x + 16

4) Has a common factor of 2:
Final answer: 2(3x^2 - 6x + 8)
User Seth Moore
by
7.8k points
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