2x三次方_3x二次方 1怎么算
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原式=(8x^6-6x^6-12x^5)÷(-2x²)=(2x^6-12x^5)÷(-2x²)=-x^4+6x³再问:=(2x^6-12x^5)÷(-2x²)=
(x+3)^2-(x-1)(x-2)=x^2+6x+9-(x^2-3x+2)=x^2+6x+9-x^2+3x-2=9x+7(x^2y)^3*(-2y^2)^2÷(2x^2)=(x^6y^3)*(4y^
x^3+x^2=x^2(x+1)x^2+2x+1=(x+1)^2x^2-x-2=(x-2)(x+1)公因式是x+1
1.(-2x²)³-(-x³)²=-8x^6-x^6=-9x^62(-x)^8×(y^6)^(1/2)(x⁴×y⁴)²×y
x^2+x-1=0x^2+x=1x^3+2x^2+3=x^3+x^2+x^2+3=x(x^2+x)+x^2+3=x+x^2+3=1+3=4
1.x³-2x²y+xy²=x(x²-2xy+y²)=x(x-y)²2.8a²b-2b=2b(4a²-1)=2b(2a-
=2x^3+4x-1/3x^2-x-3x^2+2x^3=4x^3-10/3x^2+3x=4(-3)^3-10/3(-3)^2+3*(-3)=4*(-27)-10/3*9-9=-108-39=-147
式子是这样的吗?(2x-1)3=a+bx+cx2+dx3左式展开:8x3-4x2+2x-1=dx3+cx2+bx+a对应起来d3=8d=2c=-4b=2a=-1所以(1)a=-1(2)a+c=-5
3x三次方2x二次方-{5x-2-[6-2x-(-x二次方+3x三次方)]=6X^5-[5X-2-6+2X+(-X^2+3X^3)]=6X^5-(7X-8-X^2+3X^3)=6X^5-3X^3+X^
1^3+2^3+3^3+.+n^3=(1+2+3+.+n)^2=[n(n+1)/2]^2
【参考答案】x^6原式=(-3x³)²-[(2x)²]³=(-3)²(x³)²-8x^6=9(x^6)-8x^6=x^6再问:(2
∫(3x^3+2x^2+x)dx=x^2/2+(2x^3)/3+(3x^4)/4+c
(-3x的3次方)的2次方-[(2x)的2次方]的3次方=9x的6次方-[(4x)的2次方]的3次方=9x的6次方-64x的6次方=-55x的6次方很高兴为您解答,祝你学习进步!【学习宝典】团队为您答
x的三次方减2X的二次方再加1=x的三次方-X的二次方-X的二次方+1=x的三次方-X的二次方-(X的二次方-1)=X的二次方(X-1)-(X+1)(X-1)=(X-1)(X的二次方-X-1)
(x二次方-2x+1)二次方除(x-1)三次方=(x-1)四次方/(x-1)3次方=x-1=2010
=x²(x-1)/x(x-1)-(1+x)(1-x)/(x+1)=x-(1-x)=2x-1当x=2时原式=4-1=3
x+3=(1-3a)²的立方根x=-3+(1-3a)²的立方根再问:是求开平方,求解。再答:没错采纳吧
(x^4+2x^3-(1/2)x^2)÷(1/2)x^2=x^4÷(1/2)x^2+2x^3÷(1/2)x^2-(1/2)x^2÷(1/2)x^2=2x^2+4x-1
17x的9次方,上式为2x的9次方-64x的9次方+81x的9次方
x³+x²=12x³-2x²+3x²-12=0x²(x-2)+3(x+2)(x-2)=0(x-2)(x²+3x+6)=0x-2=0