百度作业网（x+2)(x^2-4x+4)
来源：学生作业帮 编辑：百度作业网作业帮 分类：数学作业 时间：2024/08/19 21:34:08
（x+2)(x^2-4x+4)
-(-x)^2*(-2x^2y)+2x(x^6y^3-1)
3(2x^2+5x-4)-2(3x^2-x+3)
-(-x)^2*(-2x^2y)+2x(x^6y^3-1)
3(2x^2+5x-4)-2(3x^2-x+3)
（x+2)(x^2-4x+4)
=x*(x^2-4x+4)+2*(x^2-4x+4)
=x*x^2-x*4x+x*4+2x^2-2*4x+2*4
=x^3-4x^2+4x+2x^2-8x+8
=x^3-2x^2-4x+8
-(-x)^2*(-2x^2y)+2x(x^6y^3-1)
=2x^4y+2x^7y^3-2
3(2x^2+5x-4)-2(3x^2-x+3)
=3*2x^2+3*5x-3*4-2*3x^2+2x-2*3
=6x^2+15x-12-6x^2+2x-6
=17x-18
=x*(x^2-4x+4)+2*(x^2-4x+4)
=x*x^2-x*4x+x*4+2x^2-2*4x+2*4
=x^3-4x^2+4x+2x^2-8x+8
=x^3-2x^2-4x+8
-(-x)^2*(-2x^2y)+2x(x^6y^3-1)
=2x^4y+2x^7y^3-2
3(2x^2+5x-4)-2(3x^2-x+3)
=3*2x^2+3*5x-3*4-2*3x^2+2x-2*3
=6x^2+15x-12-6x^2+2x-6
=17x-18
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
通分x+4/x*x+4x与x-5/x(x-5)-2(x-5)
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),
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
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)
先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x=2011
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
2x+3x+4x+5x+x+6x+7x=100
3x⁷*x⁴+2x*x²*x⁴-4x⁵*(-x)²