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Answer:
Step-by-step explanation:
<u>Add:</u>
- 4x² - 2x + 6 + 2x² + 4x - 1 = 6x² + 2x + 5
<u>Subtract:</u>
- 6x² + 2x + 5 - 5x² - 2x + 4 = x² + 9
Just divide 20/23 and you'll get 0.8695652174 which is also rounded up to 0.87
Step-by-step explanation:
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