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If 12^(4+2x^(2)) = (24sqrt(3))^(3x^(2)-2...

If `12^(4+2x^(2)) = (24sqrt(3))^(3x^(2)-2)`, then x is equal to

A

`+- sqrt((13)/(12))`

B

`+- sqrt((14)/(5))`

C

`+- ((12)/(13))`

D

`+- sqrt((5)/(14))`

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The correct Answer is:
To solve the equation \( 12^{4 + 2x^2} = (24\sqrt{3})^{3x^2 - 2} \), we will follow these steps: ### Step 1: Rewrite the equation Start by rewriting the right-hand side: \[ 24\sqrt{3} = 12 \cdot 2 \cdot 3^{1/2} \] Thus, we can express the equation as: \[ 12^{4 + 2x^2} = (12 \cdot 2 \cdot 3^{1/2})^{3x^2 - 2} \] ### Step 2: Simplify the right-hand side Using the properties of exponents, we can expand the right-hand side: \[ (12 \cdot 2 \cdot 3^{1/2})^{3x^2 - 2} = 12^{3x^2 - 2} \cdot 2^{3x^2 - 2} \cdot (3^{1/2})^{3x^2 - 2} \] This simplifies to: \[ 12^{3x^2 - 2} \cdot 2^{3x^2 - 2} \cdot 3^{(3x^2 - 2)/2} \] ### Step 3: Equate the bases Now, we can equate the powers of 12 from both sides: \[ 12^{4 + 2x^2} = 12^{3x^2 - 2} \cdot 2^{3x^2 - 2} \cdot 3^{(3x^2 - 2)/2} \] This gives us: \[ 4 + 2x^2 = 3x^2 - 2 + \text{(additional terms)} \] ### Step 4: Isolate the powers of 12 To isolate the powers of \(12\), we can subtract \(3x^2 - 2\) from both sides: \[ 4 + 2x^2 + 2 = 3x^2 \] This simplifies to: \[ 6 + 2x^2 = 3x^2 \] ### Step 5: Rearrange the equation Rearranging gives: \[ 6 = 3x^2 - 2x^2 \] Thus: \[ 6 = x^2 \] ### Step 6: Solve for \(x\) Taking the square root of both sides, we find: \[ x = \pm \sqrt{6} \] ### Final Answer The values of \(x\) are: \[ x = \sqrt{6} \quad \text{or} \quad x = -\sqrt{6} \] ---

To solve the equation \( 12^{4 + 2x^2} = (24\sqrt{3})^{3x^2 - 2} \), we will follow these steps: ### Step 1: Rewrite the equation Start by rewriting the right-hand side: \[ 24\sqrt{3} = 12 \cdot 2 \cdot 3^{1/2} \] Thus, we can express the equation as: ...
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