Evaluate 27x by the power of 2 - 42x + 12 and the equivalent expression that you wrote in problem 7 for x = 2. what do you notice about the value of the two expressions?

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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