SOLUTION: 2^x+4^x+8=28 Solve for X.

Question 642134: 2^x+4^x+8=28
Solve for X.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

2^x+4^x+8=28
Solve for X.

---- Rearranging terms

OR

OR

OR (IMPOSSIBLE, as no value raised to a power results in a negative value, so ignore)

========
Check
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4 + 16 + 8 = 28
28 = 28 (TRUE)

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