Question

${3}^{2x + 4} + 1 = 2 \times {3}^{x + 2}$
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Answer 1

Answer:

Step-by-step explanation:

LEFT HAND SIDE      3^[2x+4] is divisible by 3  

                                   3^[2x+4]   + 1  is  not  divisible by 3    

so RHS                        2x3^[x+2]   is not  divisible by 3    

only possible is            x+2 = 0

                                     x = -2 and 2x+4 = 0

LHS = 3^0 +1 = 1+1 = 2

RHS  = 2x3^0 = 2x1 = 2

x = - 2