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SOLUTION: Help with this one please. Solve for x exactly 5^x+4 = 25^x+3
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Algebra: Exponents and operations on exponents
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Question 43316
:
Help with this one please.
Solve for x exactly
5^x+4 = 25^x+3
Answer by
psbhowmick(868)
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You can
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As you have not used brackets so your queston is not very clear. I presume what you meant is
This equation can be written as
.
As this is an equation so the power or index of 5 on both sides have to be equal.
So (x+4) = 2(x+3)
or x + 4 = 2x + 6
or 4 - 6 = 2x - x
or x = -2