(x^2+13x+42)/(x+6)
4个回答
(x^2+13x+42)/(x+6)
=(x+6)(x+7)/(x+6)
=x+7
相关问题
解方程((13x-x^2)/(x+1))(x+(13-x)/(x+1))=42
不等式(x2-2x-3)(x2-13x+42)
13x+42-5x=104-12x-22
6x^2-13x+6
当x=______时,代数式x2-13x+12的值等于42.
(13-x)+6=(2x)
0.75=x*13.42%/6% 求x等于多少?列出每步,
(x+3)(x-6)+13=x(x+2)
13.2+2x=42.6解方程用等式的性质解