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Could some one help me with these last two please

Could some one help me with these last two please
asked 212k views
3 votes
Could some one help me with these last two please

Could some one help me with these last two please-example-1
asked
User Josh Siegl
by
8.2k points

1 Answer

3 votes

21.- Associative property

22.- Reflexive propertive

20.- x = -7 y = 4

x^3 - 3xy = (-7)^3 + 3(-7)(4)

= -343 - 84

= -427

answered
User Carlos Rojas
by
7.9k points
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