Simplify 5x^2+7x-2x^2-10x+5?
回答 (1)
2016-02-29 10:24 am
5x² + 7x - 2x² - 10x + 5
= (5x² - 2x²) + (7x - 10x) + 5
= 3x² - 3x + 5
= (5x² - 2x²) + (7x - 10x) + 5
= 3x² - 3x + 5
收錄日期: 2021-04-18 14:32:34
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