3^5x-2=27 3 в степени 5x-2 равно 27

Лебедев Дмитрий Сергеевич

Учитель математики

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To solve the equation 35x2=273 raised to the 5 x minus 2 power equals 27, we need to express both sides of the equation with the same base. 1. Transform the Equation First, recognize that 27 is a power of 3: 27=3327 equals 3 cubedNow, substitute this back into the original equation: 35x2=333 raised to the 5 x minus 2 power equals 3 cubed2. Equate the Exponents Since the bases are identical (both are 3), their exponents must be equal for the equation to hold true: 5x2=35 x minus 2 equals 33. Solve for x Now, perform basic algebraic operations to isolate xx:

  • Add 2 to both sides:
    5x=3+25 x equals 3 plus 2 5x=55 x equals 5 Divide by 5:
    x=55x equals five-fifths x=1x equals 1

Answer: x=1x equals 1 Verification: Substitute x=1x equals 1 back into the original equation: 35(1)2=352=33=273 raised to the 5 open paren 1 close paren minus 2 power equals 3 raised to the 5 minus 2 power equals 3 cubed equals 27. The solution is correct. Would you like me to solve another exponential equation using this method?

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