Question

1+x+3=1343
x=54
how will the answer will 1343

Answer 1

Answer:

9^x - 3^(x+1)-54=0

3^2x -3*3^x - 54 =0

let u = 3^x

u^2 -3u -54 = 0

u1,2 = [3+/-sqrt(9+4*54)]/2 =[3+/-15]/2

u1 = 9 = 3^2

u2 = -6,

but u =3^x

3^x1 = 3^2

x1=2

3^x2 = -6

log(3^x2) = log (-6), but the second term is not defined therefore eq excepts only x = 2

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