6x^2-11x+3.8x^2-18x-5.2x^2-9x+10.12x^2-13x-14.求因式分解交叉相乘解答过程
问题描述:
6x^2-11x+3.8x^2-18x-5.2x^2-9x+10.12x^2-13x-14.求因式分解交叉相乘解答过程
答
6x^2-11x+3=(3x-1)(2x-3)
3-1
2-3
8x^2-18x-5=(4x+1)(2x-5)
41
2-5
2x^2-9x+10=(2x-5)(x-2)
2-5
1-2
12x^2-13x-14=(4x-7)(3x+2)
4-7
32