What is the product of (x - 3)3?
回答 (6)
2009-04-25 6:00 am
✔ 最佳答案
(x - 3)^3= (x - 3)(x - 3)(x - 3)
= (x^2 - 3x - 3x + 9)(x - 3)
= (x^2 - 6x + 9)(x - 3)
= x^2*x - 6x*x + 9*x - 3*x^2 + 3*6x - 9*3
= x^3 - 6x^2 + 9x - 3x^2 + 18x - 27
= x^3 - 6x^2 - 3x^2 + 9x + 18x - 27
= x^3 - 9x^2 + 27x - 27
2009-04-25 11:32 am
(x - 3)³
= x³ - 3(x²)(3) + 3(x)(3²) - 3³
= x³ - 9x² + 27x - 27
= x³ - 3(x²)(3) + 3(x)(3²) - 3³
= x³ - 9x² + 27x - 27
2009-04-25 11:17 am
3x-9
2009-04-25 11:16 am
(3*x)+(-3*3)
3x-9
3x-9
2009-04-25 11:16 am
3x-9
are u a retard?
are u a retard?
2009-04-25 11:15 am
3x-9
收錄日期: 2021-05-01 12:18:23
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https://hk.answers.yahoo.com/question/index?qid=20090424201123AABhJlC