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(05.02)

Explain how solve 4^(x + 3) = 7 using the change of base formula log base b of y equals log y over log b. Include the solution for x in your answer. Round your answer to the nearest thousandth.

Respuesta :

Answer:

x=1

Step-by-step explanation:

4x+3=7

subtract 3 from both sides

Simplify 7-3 to 4.

divide both sides by 4

amna04352

Answer:

-1.596

Step-by-step explanation:

4^(x + 3) = 7

Apply log4 both sides

log4[4^(x+3)] = log4(7)

(x+3)log4(4) = lg7/lg4

x+3 = 1.403677461

x = -1.596322539

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