Solving exponential equations
Solve for x: 3^x+1 +3^x =324
2 answers:
3^(x+1) + 3^x = 324 <=> (3^x)*3 + 3^x = 324 <=> (3^x)( 3 + 1) = 324 <=> (3^x)*4 = 324 <=> 3^x = 81 <=> 3^x = 3^4 <=> x = 4.
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Step-by-step explanation:
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This should be A. Hope this helps!