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Solve for x : 8ˣ⁺⁵=64ˣ⁺¹

User Lomtrur
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Final answer:

To solve the exponent equation 8ˣ⁵ = 64ˣ⁵, express both sides with a common base of 8, equate the exponents, and solve for x to find that x = 3.

Step-by-step explanation:

To solve the equation 8ˣ⁵ = 64ˣ⁵, we can start by recognizing that 64 is a power of 8 since 64 is equal to 8². Using this relationship, we can express the equation with a common base:

8¹ˣ⁵ = (8¹²)ˣ⁵

8¹ˣ⁵ = 8²ˣ⁵

Now, since the bases are the same, we can set the exponents equal to each other:

x + 5 = 2(x + 1)

x + 5 = 2x + 2

Subtract x from both sides:

5 = x + 2

Finally, subtract 2 from both sides to solve for x:

x = 3

Hence, the solution to the equation is x = 3.

User Kallen
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