Առաջադրանք՝ 109 ե-ը,110ե-ը,111 ե-ը,112 բ
Լրացուցիչ՝ 109 ա-դ, 110 ա-դ, 111 ա-դ, 112ա
Վարժ109.
(a+3)x7=7a+21
ax(a+b)=a2+ab
X x (X-Y+C)=X2-XY+XC
(X-Y)x10=10X-10Y
(A+b-C)x2=2A+2B-2C
(A-B)x5A=5A2-5AB
Ax(X-Y)=AX-AY
Վարժ 110.
(-2)x(X+Y)=-2X-2Y
3ABx(A2-2A+1)=3A3B-6A2B+3AB
(X2+2XY+Y2)x(-12XY2)=-12X3Y2-24X2Y3-12XY4
(-ABC)x(AB+AC-BC)=-A2B2C-A2BC2+AB2C2
(7+3Y-X2y)x(-2XY)=-14XY-6XY2+2X3Y2
2Ax(X+Y)=2AX+2AY
21A2B5(A3-4Ab2-B2)=21A5B5-84A3B7-21A2B7
-AC(A+2C)=-A2C-2A2
Վարժ 111
2(a+b)+4(a+b)=2a+2b+4a+4b=6a+6b
4-2x(x+1)=4-2X-2=2-2x
2x(a-b)-3x(a+b)=2a-2b-3a+3b=-a+b
3a2-ax(3a-4b)-2x(b-4a)=3a2-3a2+4ab-2b+8a=4ab-2b+8a
4x(x-y)+7(x-y)=4x-4y+7x-7y=11x-11y
2a-3(b-a)=2a-3b+3a=5a-3b
A(x-y)-b(x+y)=ax-ay-bx-by
2ab(a+2b)-3ab2(a-4)=2a2b+4ab2-3a2b2+12ab2=2a2b+16ab2-3a2b2
Վարժ 112
A (b-c)+b(c-a)+c(a-b)=ab-ac+bc-ba+ca-cb=0
A (b+c-bc)-b(c+a-ac)+c(b-a)=ab+ac-abc-bc-ba+bac+cb-ca=0