What should be subtracted from 5+x- 2x² to get 3x² - 6x-4?
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Answer:
(-5x² + 7x +9) should be subtracted from 5+x- 2x² to get 3x² - 6x-4
Step-by-step explanation:
Let U should be substracted from 5+x- 2x² to get 3x² - 6x-4
5+x- 2x² - U = 3x² - 6x-4
⇒ U = 5+x- 2x² - (3x² - 6x-4)
⇒ U = 5+x- 2x² - 3x² + 6x +4
⇒ U = -5x² + 7x +9
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