Please solve 15 no with process

Please solve 15 no with process 21, vveffcient of a? in the sum of a) High Order Thinking Skills (HOTS) 15. Fill in the blanks to make the given addition sentence true: + 2b2c+ — 14b3a 6ab3 . + — 12abc subtrahend mentally and proceed as in addition. can only be indicated. However, the sign of the 110

Please find below the solution to the asked query:

We have : 6 a b³ + ___ + 2 b² c + 8 a b c - 14 b³ a = 15 b² c + ___ + 20 a b c - 12 a b c  , So

6 a b³ + x + 2 b² c + 8 a b c - 14 b³ a = 15 b² c + y + 20 a b c - 12 a b c  ,

x + 2 b² c + 8 a b c - 8 a b³  = 15 b² c + y +  8 a b c , Now by comparing both side we get :

x + 2 b² c = 15 b² c ,

x = 13 b² c ,

And

y  = - 8 a b³ , Then

6 a b³ + ( 13 b² c ) + 2 b² c + 8 a b c - 14 b³ a = 15 b² c + ( - 8 a b³ ) + 20 a b c - 12 a b c


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