close
標題:
Factorization (2)
發問:
Please show step by step 28+13x-6x^2
最佳解答:
using the cross method: 2x -7 3x 4 -------------- -21x + 8x=-13x 28 13x-6x^2 =-6x^2 13x 28 =-(6x^2-13x-28) =-(2x-7)(3x 4)
其他解答:
此文章來自奇摩知識+如有不便請留言告知
Assume 28+13x-6x^2 = 0 (3x+4)(-2x+7) = 0 x = -4/3 or 7/2
文章標籤
全站熱搜
留言列表