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Find the positive solution of the equation.

3x^((2)/(5))+8=200
Answer:

Find the positive solution of the equation.\newline3x25+8=200 3 x^{\frac{2}{5}}+8=200 \newlineAnswer:

Full solution

Q. Find the positive solution of the equation.\newline3x25+8=200 3 x^{\frac{2}{5}}+8=200 \newlineAnswer:
  1. Isolate x Term: First, we need to isolate the term containing the variable xx on one side of the equation.\newlineSubtract 88 from both sides of the equation to get 3x(2/5)3x^{(2/5)} alone on one side.\newline3x(2/5)+88=20083x^{(2/5)} + 8 - 8 = 200 - 8\newline3x(2/5)=1923x^{(2/5)} = 192
  2. Divide by 33: Next, we divide both sides of the equation by 33 to solve for x2/5x^{2/5}. \newline3x2/53=1923\frac{3x^{2/5}}{3} = \frac{192}{3}\newlinex2/5=64x^{2/5} = 64
  3. Remove Exponent: Now, we need to get rid of the exponent (25)(\frac{2}{5}). We can do this by raising both sides of the equation to the reciprocal of (25)(\frac{2}{5}), which is (52)(\frac{5}{2}).\newline(x25)52=6452(x^{\frac{2}{5}})^{\frac{5}{2}} = 64^{\frac{5}{2}}
  4. Simplify Exponent: When we raise a power to another power, we multiply the exponents. In this case, (25)×(52)=1(\frac{2}{5}) \times (\frac{5}{2}) = 1, so the left side simplifies to xx.x=6452x = 64^{\frac{5}{2}}
  5. Calculate Result: To simplify 645/264^{5/2}, we first find the square root of 6464, which is 88, and then raise it to the power of 55.\newlinex=(82)5/2x = (8^2)^{5/2}\newlinex=85x = 8^5
  6. Calculate Result: To simplify 645264^{\frac{5}{2}}, we first find the square root of 6464, which is 88, and then raise it to the power of 55.
    x=(82)52x = (8^2)^{\frac{5}{2}}
    x=85x = 8^5Now we calculate 88 raised to the power of 55.
    85=8×8×8×8×88^5 = 8 \times 8 \times 8 \times 8 \times 8
    85=327688^5 = 32768

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