2 to the power of what minus 4 gives the answer 0
To find the value of the exponent, you need to solve the equation:
2^x - 4 = 0
To isolate the variable, you add 4 to both sides:
2^x = 4
Now, to solve for x, you can take the logarithm (base 2) of both sides:
log2(2^x) = log2(4)
Using the logarithmic property, the exponent x can be brought down:
x * log2(2) = log2(4)
Since log2(2) is equal to 1, the equation simplifies to:
x = log2(4)
To find the value log2(4), you can use a calculator:
x ≈ 2
Therefore, 2 to the power of 2 minus 4 gives the answer 0.