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Please help me ffftrrsse

Please help me ffftrrsse-example-1
User Dnets
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Answer:

ab=ba, 5(3x-2)=5.(3x)-5.(2)=15x-10,
(1)/(2)(4-2x)=(1)/(2).4-(1)/(2).2x=2-x, 32y+12y=44y, 12+3x-x-12 = 2x

Explanation:

In the given questions

3) ab is given it is which is written as

By Commutative property , ab=ba

4) 5(3x-2)

By distributive property,

5(3x-2)=5.(3x)-5.(2)=15x-10 (∵a(b+c)=a.b+a.c)

5)
(1)/(2)(4-2x)

By distributive property, (a(b+c)=a.b+a.c)


(1)/(2)(4-2x)=(1)/(2).4-(1)/(2).2x=2-xwhich is not equivalent to 2-2x

6)
(1)/(2)(6x-2)

By distributive property, (a(b+c)=a.b+a.c)


(1)/(2)(6x-2)=(1)/(2).(6x)-(1)/(2).2=3x-1 which is not equivalent to 3-x

7) 32y+12y

32y+12y=(32+12)y (∵ distributive property)

= 44y

8) 12+3x-x-12

12+3x-x-12=12+(3-1)x-12 (∵ distributive property)

= 12+(2x-12)

= 12+(-12+2x) (∵ commutative property)

= (12-12)+2x (∵ associative property)

= 2x

User Kuzdu
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