The three boxes 1,2,3 has values resp. AB,BC,AC Get 2A(B+C)
+AC-2C(A-B)in Box 1 using only addition in 3 steps.
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Answer Posted / vinay upadhyay
2A(B+C)+AC-2C(A-B)
=2AB+2AC+AC+2AC+2BC
=2AB+2BC+AC
b1 b2 b3
AB BC AC
STEP1 b1=b1+b1+b2
b1 b2 b3
2AB+BC BC AC
STEP2 b2=b1+b2
b1 b2 b3
2AB+BC 2AB+2BC AC
STEP3 b3=b2+b3
b1 b2 b3
2AB+BC 2AB+2BC 2AB+2BC+AC
| Is This Answer Correct ? | 8 Yes | 6 No |
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