Question

pls answer the above question​

Answer 1

Answer:

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Step-by-step explanation:

16^x + 36^x = 81^x

[ (16^x) / (81^x) ] + [ (36^x) / (81^x) ] = 1

[4/9]^2x + [4/9]^x - 1 = 0

Let, y = (4/9)^x

Solve the quadratic in y, then substitute

x = ln (y) / ln (4/9)