15
QuizMultiple Choice

Exponential and Logarithmic Functions — Test

Question 15 • Mathematics III

What is the solution to the equation 2 raised to the x plus 4 power minus 12 is equal to 20 ?

Answer
A
x is equal to 2
B
x is equal to 0
C
x is equal to 1
D
x is equal to 9

Explanation

Add 12 to both sides to get 2^(x + 4) = 32. Since 32 = 2^5, the exponents must be equal: x + 4 = 5, so x = 1. The correct choice is “x is equal to 1.”

AI-written and checked against the verified answer.

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