(-x+2x²+5)+(4x²-3-6x)怎么算?
(-x+2x²+5)+(4x²-3-6x)怎么算?
怎么因式分解:(x²+3x+3)(x²+3x-4)+6和(x²-5x)(x²-5
(2x-6)/(x²-4x)/(X+3)*( x²+x-6)/(3-x)等于多少?
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(﹣x+2x²+5)+(4x²-3-6x)
(合并同类项)3x²-6+4x-6x-2x²+5
(-X+2X²+5)+(4X²-3-6X)=?
(x+4)(3x+6)=2x+4 (3x- 1)²+4x²=0 x²+5=2根号6x-1
(8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3
3x²-【5x²+(3x²-2x)-(2x²-4x)】 化简
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3