Find the fourth term of the sequence given by the rule tn=4(2)^n-1 a) 32 b) 34 c) 64 d) 16

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or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!