Question

solve it for x..

please tell me full solution ..

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Answer 1

Answer:

3x = 9 * 81

3x = 729

x = 729/3

x = 243

Hope it helps you!!

Answer 2

Answer:

$\bold \pink {3 ^{x} = 3 ^{2} \times 81} \\ \bold \green{convert \:the \: base \: of \: 81 \: as \: 3} \\ \bold \pink {3 ^{x} = 3 {}^{2} \times 3 {}^{4} } \\ \bold \green{add \: the \: powers \: as \: bases \: are \: same.} \\ \bold \pink{3 {}^{x} = 3 {}^{2} + 3 {}^{4 \: \: } {}^{ = 2 + 4 = 6} } \\ \bold \orange{hence \: \pink{3 {}^{x} = 3 {}^{6} }} \\ \bold \purple{ x = 6}$