SOLUTION: Solve for x: 3^2x=27^x+1
2. Solve for x: 25^x-1=125^x
3.Solve for x: 16^x-2=(1/8)^x
Please help me.We didn't even learn any of this is class and I don't know to how solve it o
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Question 696650: Solve for x: 3^2x=27^x+1
2. Solve for x: 25^x-1=125^x
3.Solve for x: 16^x-2=(1/8)^x
Please help me.We didn't even learn any of this is class and I don't know to how solve it or start it. Please help. Step by step procedure will be helpful. Thanks in advance!
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Solve for x: 3^2x=27^x+1
2. Solve for x: 25^x-1=125^x
3.Solve for x: 16^x-2=(1/8)^x
Please help me.We didn't even learn any of this is class and I don't know to how solve it or start it. Please help. Step by step procedure will be helpful. Thanks in advance!
2x = 3x + 3 ---- When bases are equal, so are their exponents
2x – 3x = 3
- x = 3
, or
Use the same concept to solve no. 2
4(x – 2) = - 3x ---- When bases are equal, so are thier exponents
4x – 8 = - 3x
4x + 3x = 8
7x = 8
You can do the check!!
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