# Zeroes of functions

1. Find all zeros for f(x)=x^4-15x^3+70x-156

2. Solve 3^x+2=65 Round your answer 3 decimal places.

3. Solve 6^4x+5=3^7x-1 Round your answer 3 decimal places.

4. Solve logx=4.952 Round your answer to 3 decimal places.

5. Solve 2^3x=3^4x-2 Round your answer to 3 decimal places.

Please show work and answers. Thank you!

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#### Solution Preview

1. Zeros are not rational number. I have to use decimals.

All the zeros are:

x=-2.690, ...

#### Solution Summary

This shows how to find zeroes of and solve exponential and logarithmic functions.

$2.19