hammackkatelyn60
09.12.2021 •
Mathematics
Số phần tử của tập hợp làC={2;4;6...;200)
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Ответ:
- 2x² + 7x + 1
Step-by-step explanation:
f(x) - g(x)
= x² + 2x - 6 - (3x² - 5x - 7) ← distribute parenthesis by - 1
= x² +2x - 6 - 3x² + 5x + 7 ← collect like terms
= - 2x² + 7x + 1