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If ((1)/(16))^(4-3x) xx 8^(x-2)= (0.25)^...

If `((1)/(16))^(4-3x) xx 8^(x-2)= (0.25)^(x)`, then find the value of `(17x)/(22)+1`

A

2

B

`(39)/(22)`

C

1

D

`(22)/(17)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \(\left(\frac{1}{16}\right)^{4-3x} \times 8^{x-2} = (0.25)^{x}\), we will follow these steps: ### Step 1: Rewrite the bases in terms of powers of 2 We know: - \(16 = 2^4\) so \(\frac{1}{16} = 2^{-4}\) - \(8 = 2^3\) - \(0.25 = \frac{1}{4} = 2^{-2}\) Thus, we can rewrite the equation as: \[ (2^{-4})^{4-3x} \times (2^3)^{x-2} = (2^{-2})^{x} \] ### Step 2: Apply the power of a power property Using the property \((a^m)^n = a^{m \cdot n}\), we simplify the left side: \[ 2^{-4(4-3x)} \times 2^{3(x-2)} = 2^{-2x} \] This simplifies to: \[ 2^{-16 + 12x} \times 2^{3x - 6} = 2^{-2x} \] ### Step 3: Combine the exponents on the left side Using the property \(a^m \times a^n = a^{m+n}\), we combine the exponents: \[ 2^{(-16 + 12x + 3x - 6)} = 2^{-2x} \] This simplifies to: \[ 2^{15x - 22} = 2^{-2x} \] ### Step 4: Set the exponents equal to each other Since the bases are the same, we can set the exponents equal to each other: \[ 15x - 22 = -2x \] ### Step 5: Solve for \(x\) Now, we will solve for \(x\): \[ 15x + 2x = 22 \] \[ 17x = 22 \] \[ x = \frac{22}{17} \] ### Step 6: Find the value of \(\frac{17x}{22} + 1\) Now we substitute \(x\) back into the expression: \[ \frac{17x}{22} + 1 = \frac{17 \cdot \frac{22}{17}}{22} + 1 \] \[ = \frac{22}{22} + 1 = 1 + 1 = 2 \] Thus, the final answer is: \[ \boxed{2} \]
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