Рубрика: Հանրահաշիվ

Հանրահաշիվ

184
ա 2/x2-3x3=2x-3/x3
բ 7/m4-3a/m2=7-3m2/m4

գ1/a5b3+1/ab7=a4+b4/a5b7

դ 4/x4b3-3/x2b5=4b2-3x2/b5x4
ե 3a/x7y5z-3b/xy4z5=3az4-3bx6y/x7y5z5

զ m7n/a4b3c9+3mnz3b6c4=mn(3ac5n+b3m6)

185
ա 1/2a-2+3/x2b5=2+2/4a-4=1/a-1=1/a-1
բ 7a/3x+3-a/6x+6=21a-a/6x-6=10m/3(x-5)=13a/6)x+1)
գ 2m/4m+4n+4n/8m+8n=1/4=1/2

դ2p/10p-10q-3q/15p-15q=1/5

ե2x/ax+bx+3y/ay+by=5/a+b

զy/ax-bx-x/ay-by=y2-x2/xy(a-b)

է1/2x2y-xy+2/y-2xy=-1/xy

ը3/3m2n-6mn2-2/4mn=2m2=n+1/mn(m-2n)

թ15/10p3q-15p2q2-6q/9pq3-6p2q2=3+2p/p2q(2p-3q)

ժ3b/2a3b-8a2b2-5a/12a3b-3a4=19/6a2(a-4b)
186
ա 2a/a2-9+3/a-3=5a+9/(a-3)(a+3)
բ 5/m+n-4n/m2-n2=5m-9n/m2-n2
գ x/4-9×2+1/3x+2=2-2x/(2-3x)(2+3x)

դ1/2p+4q-q/4q2-p2=p/2(p2-4q2)

ե1/a2+ab+b2+b/a3-b3=a/a3-b3

զm2+n2/m3+n3-1/2(m+n)=m2+mn+n2/2(m3+n3)

էx2-2xy/(x-2y)3+1/2y-x=2y/(x-2y)2

ը2(p+q)/p3-q3+3/q2-p2=p2-pq+q2/(p+q)(q3-p3)

187

ա 3-7/м-2=3m-13/m-2

բ1-x-y/x+y=2y/x+y

գ(а+b)2/b-2a2+b2/b

դ(a-b)2/2a+b=a2+b2/2a

եa+b-a2+b2/a-b=2b2/b-a

զa2+b2/a+b+a-b=2a2a+b

188

աa/b•c/d=ac/bd

բx/y:a/b=x/y•b/a=xb/ya

գ4a/7b•21/a=12b

դ5/8:15q/16=2q/3p

189

ա a•a/b=a2/b

բa/x:a/1=a/x

գa/7•5x/1=5a/7

դab:a/b=ab•b/a-b2

ե8a:20a2b/3x=3x/4ab

զ18p3•5x/9p2=5xp

190a+1/7x•2x/a+1=2/7

բ2m/m-n:3mn/m-n=2/3n

գ4p/p-3•p-3/2p2=2/p

դx+y/8a:x+y/16a2b=8b/a

ե2x+2y/3•6/x+y=2(x+y)/x+y=4

զ4a/a2b:5ab/3(a-b)=12(a-b)/5a2b2