Pre-Calculus help!?
2017-01-21 2:15 am
Write the equation of a quadratic whose roots are -3/7 and 2/5. Answer without fractions.
回答 (2)
2017-01-21 2:20 am
✔ 最佳答案
The two roots are -3/7 and 2/5.x = -3/7 or x = 2/5
7x = -3 or 5x = 2
(7x + 3) = 0 or (5x - 2) = 0
(7x + 3)(5x - 2) = 0
The required equation is: (7x + 3)(5x - 2) = 0
2017-01-21 2:20 am
35x^2 - x - 6 = 0
收錄日期: 2021-05-01 13:07:46
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https://hk.answers.yahoo.com/question/index?qid=20170120181500AAV9xhn