Given: x+21=7(x+9) Find: x^2+5x
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A logarithm is defined as a power to which a number must be raused to in order to get another number. For example,
This is because
So if we have
We have to determine what number must 10 be raised to in order to give 13 so we have
This is because
So if we have
We have to determine what number must 10 be raised to in order to give 13 so we have