一堆一堆的因式分解啊~~~~~~~~在线等
利用分式因式分解进行简便运算:一、535²-465²二、543²-345²分之321²-123²填空:9x...
利用分式因式分解进行简便运算:一、535²-465² 二、543²-345²分之321²-123²
填空: 9x²- ()=(3x+2y)(3x- ) ( )-4m²n²=(3x+2mn)(3x- )
(x²+3)²-4x²=(x²+3)²-( )²=( )(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= ?
把下列各式分式因解:-0.16+a²b² (a+b+c) ²-(a-b-c)²
9a²-(b-c)² 100p²-4q²
4(2x+y)²-9(x-2y)²
求帮忙啊~~~~~~~~~· 展开
填空: 9x²- ()=(3x+2y)(3x- ) ( )-4m²n²=(3x+2mn)(3x- )
(x²+3)²-4x²=(x²+3)²-( )²=( )(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= ?
把下列各式分式因解:-0.16+a²b² (a+b+c) ²-(a-b-c)²
9a²-(b-c)² 100p²-4q²
4(2x+y)²-9(x-2y)²
求帮忙啊~~~~~~~~~· 展开
展开全部
利用分式因式分解进行简便运算:
一、535²-465²
=(535+465)x(535-465)
=1000x70
=70000
二、(543²-345²)分之(321²-123²)
=(543+345)x(543-345)分之(321+123)x(321-123)
=888x198分之444x198
=888分之444
=2分之1
填空:
9x²- (4y²)=(3x+2y)(3x-2y)
( 9x²)-4m²n²=(3x+2mn)(3x-2mn )
(x²+3)²-4x²=(x²+3)²-( 2x)²=( x²-2x+3)(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y=12/6=2
把下列各式分式因解:
-0.16+a²b²=(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²
=(a+b+c+a-b-c)(a+b+c-a+b+c)
=2a(2b+2c)
=4a(b+c)
9a²-(b-c)²=(3a+b-c)(3a-b+c)
100p²-4q²=(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²
=[2(2x+y)+3(x-2y)][2(2x+y)-3(x-2y)]
=(4x+2y+3x-6y)(4x+2y-3x+6y)
=(7x-4y)(x+8y)
一、535²-465²
=(535+465)x(535-465)
=1000x70
=70000
二、(543²-345²)分之(321²-123²)
=(543+345)x(543-345)分之(321+123)x(321-123)
=888x198分之444x198
=888分之444
=2分之1
填空:
9x²- (4y²)=(3x+2y)(3x-2y)
( 9x²)-4m²n²=(3x+2mn)(3x-2mn )
(x²+3)²-4x²=(x²+3)²-( 2x)²=( x²-2x+3)(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y=12/6=2
把下列各式分式因解:
-0.16+a²b²=(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²
=(a+b+c+a-b-c)(a+b+c-a+b+c)
=2a(2b+2c)
=4a(b+c)
9a²-(b-c)²=(3a+b-c)(3a-b+c)
100p²-4q²=(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²
=[2(2x+y)+3(x-2y)][2(2x+y)-3(x-2y)]
=(4x+2y+3x-6y)(4x+2y-3x+6y)
=(7x-4y)(x+8y)
展开全部
利用分式因式分解进行简便运算:一、535²-465² =(535+465)*(535-465)=1000*75=75000
二、543²-345²分之321²-123²=(321+123)*(321-123)/(543+345)*(543-345)=(444*198)/(888*198)=1/2
填空: 9x²- (4y²)=(3x+2y)(3x-2y) (9x²)-4m²n²=(3x+2mn)(3x-2mn)
(x²+3)²-4x²=(x²+3)²-(2x)²=( x²-2x+3)(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= 2
把下列各式分式因解:-0.16+a²b² =(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²=[(a+b+c)+(a-b-c)]*[(a+b+c)-(a-b-c)]=2a*2(b+c)=4a(b+c)
9a²-(b-c)² =[3a+(b-c)]*[3a-(b-c)]=(3a+b-c)(3a-b+c)
100p²-4q² =(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²=[2(2x+y)+3(x-2y)]*[2(2x+y)-3(x-2y)]=(7x-4y)(x+8y)
二、543²-345²分之321²-123²=(321+123)*(321-123)/(543+345)*(543-345)=(444*198)/(888*198)=1/2
填空: 9x²- (4y²)=(3x+2y)(3x-2y) (9x²)-4m²n²=(3x+2mn)(3x-2mn)
(x²+3)²-4x²=(x²+3)²-(2x)²=( x²-2x+3)(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= 2
把下列各式分式因解:-0.16+a²b² =(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²=[(a+b+c)+(a-b-c)]*[(a+b+c)-(a-b-c)]=2a*2(b+c)=4a(b+c)
9a²-(b-c)² =[3a+(b-c)]*[3a-(b-c)]=(3a+b-c)(3a-b+c)
100p²-4q² =(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²=[2(2x+y)+3(x-2y)]*[2(2x+y)-3(x-2y)]=(7x-4y)(x+8y)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
一、535²-465²=(535+465)(535-465)=1000*70=70000
二、543²-345²分之321²-123²
=(321+123)(321-123)/[(543+345)(543-345)]
=444*198/(888*198)
=1/2
填空: 9x²- (4y²)=(3x+2y)(3x- 2y )
( 9x² )-4m²n²=(3x+2mn)(3x- 2mn )
(x²+3)²-4x²=(x²+3)²-( 2x )²=( x²-2x+3 )(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= 2
把下列各式分式因解:
-0.16+a²b²=(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²=4a(b+c)
9a²-(b-c)²=(3a-b+c)(3a+b-c)
100p²-4q²=(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²=(7x-4y)(x+8y)
如果认为讲解不够清楚,请追问。
祝:学习进步!
二、543²-345²分之321²-123²
=(321+123)(321-123)/[(543+345)(543-345)]
=444*198/(888*198)
=1/2
填空: 9x²- (4y²)=(3x+2y)(3x- 2y )
( 9x² )-4m²n²=(3x+2mn)(3x- 2mn )
(x²+3)²-4x²=(x²+3)²-( 2x )²=( x²-2x+3 )(x²+2x+3)
已知:x²-y²=12,x+y=6,则x-y= 2
把下列各式分式因解:
-0.16+a²b²=(ab+0.4)(ab-0.4)
(a+b+c) ²-(a-b-c)²=4a(b+c)
9a²-(b-c)²=(3a-b+c)(3a+b-c)
100p²-4q²=(10p+2q)(10p-2q)
4(2x+y)²-9(x-2y)²=(7x-4y)(x+8y)
如果认为讲解不够清楚,请追问。
祝:学习进步!
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询