add the sum of -7x and 6/5x + 11/3 + x² to -6x² - 11x +3
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Answer:
7x² - (84/5)x + 20/3
Step-by-step explanation:
⇒[- 7x + 6/5x +11/3 + x²] + [-6x² - 11x + 3]
= [(- 35 + 6)/5 x + 11/3 + x²] + [6x² - 11x + 3]
= [- (29/5)x + 11/3 + x²] + [6x² - 11x + 3]
= 6x² + x² - (29/5)x - 11x + 11/3 + 3
= 7x² - (29 + 55)/5 x + (11 + 9)/3
= 7x² - (84/5)x + 20/3
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