g0606997
18.05.2021 •
Mathematics
Simplify : 7x^2 + 6x + 9x^2 - 5x
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Ответ:
131x
Step-by-step explanation:
7x² + 6x + 9x² - 5x
49x + 6x + 81x - 5x
136x - 5x
131x
Ответ: