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Question

What should come in place of both x in the equation x = 162 . 128 x


Options:
A .  12
B .  14
C .  144
D .  196
Answer: Option A

Let x = 162 128 x

Then x2 = 128 x 162

   = 64 x 2 x 18 x 9

   = 82 x 62 x 32

   = 8 x 6 x 3

   = 144.

        What Should Come In Place Of Both X In The Equation ... x = 144 = 12.



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