5(x-3y) -12(a+b) -a(-7+3b) b(5-2a) (6x-3)-(5x-2) -(7a-4)+(9a-8) 28+36 -28+36 28-36-...

Question

5(x-3y)
-12(a+b)
-a(-7+3b)
b(5-2a)
(6x-3)-(5x-2)
-(7a-4)+(9a-8)
28+36
-28+36
28-36-
-28-36-
-28+(-36)
28+(-36)

Answer 1

5(x-3y)=5x-15y
-12(a+b)=-12a-12b
-a(-7+3b)=7a-3ab
b(5-2a)=5b-2ab
(6x-3)-(5x-2)=6x-3-5x+2=x-1
-(7a-4)+(9a-8)=-7a+4+9a-8=2a-4
28+36=64
-28+36=8
28-36=-8
-28-36=-64
-28+(-36)=-64
28+(-36)=-8

Comments

cgfcb,j

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спасибо

Answer 2

5х-15у
-12а-12b
7а-3аb
5b-2ab
6x-3-5x+2=x-1
-7a+4+9a-8=2a-4
64
8
-8
-64
-64
-8