5^x+2*5^(2-x)=15

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Solution for 5^x+2*5^(2-x)=15 equation: 



5^x+2*5^(2-x)=15

We move all terms to the left:

5^x+2*5^(2-x)-(15)=0

We add all the numbers together, and all the variables

5^x+2*5^(-1x+2)-15=0

Wy multiply elements

5^x+10x(--15=0

We use the square of the difference formula

5^x+10x(+15=0

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