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Find the value of 'x'. If 8^(x) xx 32^(x...

Find the value of 'x'. If `8^(x) xx 32^(x)=2^(10)`
(a)`1//8`
(b)`10//8`
(c)`20//8`
(d)`30//8`

A

`1//8`

B

`10//8`

C

`20//8`

D

`30//8`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \( 8^x \times 32^x = 2^{10} \), we will first express the bases in terms of powers of 2. ### Step 1: Rewrite the bases We know that: - \( 8 = 2^3 \) - \( 32 = 2^5 \) Thus, we can rewrite the equation as: \[ (2^3)^x \times (2^5)^x = 2^{10} \] ### Step 2: Simplify the equation Using the power of a power property \((a^m)^n = a^{m \cdot n}\), we can simplify the left side: \[ 2^{3x} \times 2^{5x} = 2^{10} \] ### Step 3: Combine the exponents When multiplying powers with the same base, we add the exponents: \[ 2^{3x + 5x} = 2^{10} \] This simplifies to: \[ 2^{8x} = 2^{10} \] ### Step 4: Set the exponents equal to each other Since the bases are the same, we can set the exponents equal to each other: \[ 8x = 10 \] ### Step 5: Solve for \(x\) Now, we can solve for \(x\) by dividing both sides by 8: \[ x = \frac{10}{8} = \frac{5}{4} \] ### Final Answer Thus, the value of \(x\) is: \[ \frac{5}{4} \]
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