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Anonymous Anonymous
  • 31-01-2017
  • Mathematics
Answered

a= -2 b= -6 c= 5


10c^2 + 4a^2


a(3a+b)


2b(3b-c)

Verified Answer :

Anonymous Anonymous
  • 31-01-2017

First one :

10•5^2+4•-2^2=234

Second one :
-2(3•-2+-6)=24

−2((3)(−2)−6)
(−2)((3)(−2)+−6)
(−2)((3)(−2))+(−2)(−6)
12+12
24
Last one :

2•-6(3•-6-5)

(2)(−6)((3)(−6)−5)
((2)(−6))((3)(−6)+−5)
((2)(−6))((3)(−6))+((2)(−6))(−5)
216+60
=276

Hoped I helped!

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