(x^2+4x+3x)(x^2+12x+35)+15

已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 2/x^2+4x+3+2/x^2+8x+15+2/x^2+12x+35 x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x 约分 (X的平方+4x+3)(2x-x)^/(X^+X)(X^+X-6), |X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| x^3+x-30(分解因式);x^12-y^12;x^15+x^14+x^13.x^2+x+1 (x^21+x^15+x^12+x^9+x^6+x^3+1)/(x^2+x+1) x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 15-(4-5x)=2x+(35-3x) x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-1