2^x+4 = 4^x
If you meant
2^(x+4) = 4^x
which means
Since the bases are positive, equal, and not 1,
the exponts are alse equal:
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That's probably what you meant. But when you don't enclose
the exponent inside of parentheses like this
2^(x+4) = 4^x
then what you wrote
2^x+4 = 4^x
means this:
Then we'd have to use the quadratic formula and
solve by taking logs and the answer is this complicated
expression:
When typing mathematical expressions and equations, you must
enclose numerators, denominators and exponents in parentheses
except when they contain only one number or only one letter
Edwin