Simplify 5-3(x^2+2x-5)+3x^2
Just double checking textbook answer
Simplify the expression: 5-3(x^2+2x-5)+3x^2?
2017-10-17 6:03 pm
回答 (3)
2017-10-17 6:12 pm
✔ 最佳答案
5 - 3x² - 6x -15 + 3x² = - 6x - 10- 6x - 10 = (-2) (3x + 5)
2017-10-17 6:06 pm
5 - 3(x² + 2x - 5) + 3x²
= 5 - 3x² - 6x + 15 + 3x²
= (-3x² + 3x²) - 6x + (15 + 5)
= -6x + 20
= 5 - 3x² - 6x + 15 + 3x²
= (-3x² + 3x²) - 6x + (15 + 5)
= -6x + 20
2017-10-17 6:05 pm
5 - 3x^2 - 6x + 15 + 3x^2
= -6x + 20
= -6x + 20
收錄日期: 2021-04-24 00:44:25
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