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Solve the equations: 2^(x^(2)):2^(x)=8...

Solve the equations:
`2^(x^(2)):2^(x)=8:1`

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To solve the equation \( \frac{2^{x^2}}{2^x} = \frac{8}{1} \), we can follow these steps: ### Step 1: Simplify the Left Side Using the property of exponents that states \( \frac{a^m}{a^n} = a^{m-n} \), we can simplify the left side: \[ \frac{2^{x^2}}{2^x} = 2^{x^2 - x} \] ### Step 2: Rewrite the Right Side Next, we rewrite the right side \( \frac{8}{1} \) as \( 8 \). Since \( 8 = 2^3 \), we can express it as: \[ \frac{8}{1} = 2^3 \] ### Step 3: Set the Exponents Equal Now, we have the equation: \[ 2^{x^2 - x} = 2^3 \] Since the bases are the same, we can set the exponents equal to each other: \[ x^2 - x = 3 \] ### Step 4: Rearrange to Form a Quadratic Equation Rearranging the equation gives us: \[ x^2 - x - 3 = 0 \] ### Step 5: Apply the Quadratic Formula To solve the quadratic equation \( x^2 - x - 3 = 0 \), we will use the quadratic formula: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Here, \( a = 1 \), \( b = -1 \), and \( c = -3 \). ### Step 6: Substitute Values into the Formula Substituting the values into the formula: \[ x = \frac{-(-1) \pm \sqrt{(-1)^2 - 4 \cdot 1 \cdot (-3)}}{2 \cdot 1} \] This simplifies to: \[ x = \frac{1 \pm \sqrt{1 + 12}}{2} \] ### Step 7: Simplify Under the Square Root Calculating the value under the square root gives: \[ x = \frac{1 \pm \sqrt{13}}{2} \] ### Final Solution Thus, the solutions for \( x \) are: \[ x = \frac{1 + \sqrt{13}}{2} \quad \text{and} \quad x = \frac{1 - \sqrt{13}}{2} \]
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