用因式分解法解下列方程3X的平方加5X
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[2(3x+1)+3][2(3x+1)-3]=0(6x+5)(6x-1)=0x1=-5/6,x2=1/6
1.3y^2-5y=0y(3y-5)=0y1=0,y2=3/52.4x^2=12x4x²-12x=04(x²-3x)=0x(x-3)=0x1=0,x2=33.x^2+9=-6xx&
(x+3)²=9(1-2x)²(x+3)²-3²(1-2x)²=0(x+3+3-6x)(x+3-3+6x)=0(-5x+6)7x=0所以x1=0x2=
(1)分解因式得:(x+2)2=0,开方得:x+2=0,解得:x1=x2=-2;(2)方程变形得:3(x-5)2+2(x-5)=0,分解因式得:(3x-15+2)(x-5)=0,解得:x1=133,x
(4x-3)x=04x-3=0即x=3/4或x=0结论:x=3/4或x=0望及时采纳,感谢o(∩_∩)o
x²-2x=3x-6x²-5x+6=0(x-2)(x-3)=0所以X=2或者X=3
3(x-3)-(x-3)(x-3)=0(3-x+3)(x-3)=0x(x-3)=0x1=0x2=3
(x+1)(x-3)=5x^2-2x-3=5x^2-2x-8=0(x+2)(x-4)=0x1=-2x2=43x^2-x=0x(3x-1)=0x1=0x2=1/3
3X(X-1)=2(X-1)(3X-2)(X-1)=0X=1或者X=2/33X平方-12X=-123(X平方-4X+4)=03(X-2)平方=0X=2
2x(x-1)+(根号3)x(x+1)=0x(2x-2+根号3x+根号3)=0x[(2+根号3)x-(2-根号3)〕=0所以x1=0,x2=(2-根号3)/(2+根号3)
1﹙2x+3﹚²-2x-3=0解﹙2x+3﹚²=2x+32x+3=0或2x+3=1得x=-3/2或x=-12﹙2x-1﹚²-x²=0解平方差(2x-1-x)(2
(1)10x²-x=0x(10x-1)=0∴x=0或10x-1=0∴x1=0,x2=1/10所以,原方程的解为x1=0,x2=1/10(2)x²-6x+9=0(x-3)²
-3(4x-13)的平方=-27(4x-13)的平方=9(4x-13)的平方-9=0(4x-13+3)(4x-13-3)=0(4x-10)(4x-16)=0x=2.5x=4
x(x-2)=3x²-2x=3x²-2x-3=0(x-3)(x+1)=0x1=3,x2=-1很高兴为您解答,【the1900】团队为您答题.请点击下面的【选为满意回答】按钮.
3x-2)的平方=2(3x-2)(3x-2)²-2(3x-2)=0(3x-2)[(3x-2)-2)]=0(3x-2)(3x-4)=0x1=2/3,x2=4/3
4(x-3)^2-25(x^2-4x+4)=04(x^2-6x+9)-25(x^2-4x+4)=04x^2-24x+36-25x^2+100x-100=0-21x^2+76x-64=021x^2-76
(1)16x2-(x-2)2=0,(4x+x-2)(4x-x+2)=0,4x+x-2=0或4x-x+2=0,所以x1=25,x2=-23;(2)3x(x-1)+2(x-1)=0,(x-1)(3x+2)
1,4x²-12x+9=0(2x-3)²=0x1=x2=3/22,(x-3)(x-6)=0x1=3x2=63,(3y-0.2)²=0x1=x2=1/15