x²+6x+9+x²分之9+x分之6+1=32 请速打,谢.

分解因式：4b²c²-(b²+c²-a²)² 25（x+y)²-16(x-y)² x²-6x+9 已知(x²+y²)(x²+y²-6)+9=0 ,求x²+y²的值. -9x²-y²+6xy 分式加减法：化简：x²+9x/x²+3x+x²-9/x²+6x+9 x²-y²+6x+9分之x²+y²-9-2xy x²-9/x²+2x-3乘3x²-x-2/x²-5x+6, 6xy²-9x²y-y²因式分解 x²-1分之x²+x,化简x²-6x+9分之x²-9化简...T 1.x²-2x-3 2.x²-5x-6 3.x²-9x-10 4.x²-9x-10 5.x²-2x-8 6.x²+2x-8 7.x²-x-12 8.x²+x-12 9.x²+6x-16 10.x²-14x-32 11.x²+7x-18 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1 x²+3x分之x平方+9x+x²+6x+9分之x²-9 x²-9x²y²+6xy-1a²b²+16ab+60 计算：x²-6x+9/x²-x-6÷x²-9/x²-3x-10 乘以x+3/2x-10 3x² - 9x + 2 = 0 x² - 14x = 8 x² + 6x = 1 (x²-7x+6)(x²-x-6)+56 1/X²+3X+2 +1/X²+5X+6 +1/X²+7X+12 +1/X²+9X+20 X²-6X-9991