初3化简题(10x∧2+7x-6)∧2+4+4(10x∧2+7x-6)

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/14 15:01:24

(10x^2+7x-6)^2+4+4(10x^2+7x-6)
=[(10x^2+7x-6)+2]^2
=(10x^2+7x-4)^2
=[10x^2+(7x-4)]^2
=(10x^2)^2+2*10x^2(7x-4)+(7x-4)^2
=10x^4+140x^3-80x^2+49x^2-56x+16
=10x^4+140x^3-31x^2-56x+16

|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1 设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10), 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 x+10/x^2-4-x^2+2x+1/x^2-x-2+6x^2+7x+2/3x^2+8x+4 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980 (x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简 1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少 2x+3x+4x+5x+x+6x+7x=100 已知1+x+x∧2+x∧3=0,求x+x∧2+x∧3+x∧4+x∧5+x∧6+x∧7+x∧8的值. x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少