X

[Nathan]

3^x+3^(x+1)=3^2+3^2

How would I calculate x?

[[NIG]Ghost[GA]]

Quadratic Equations

[Occidi de Pax]

3^x+3^(x+1)=3^2+3^2

How would I calculate x?

Dont you mean x^3 ?
BTW if you fix that quadratic equasion ill finish it up quick :|
Because i have no idea if which one is powered to which :|

[[MPGH]Dave84311]

Solve the right, substitute for X so that left = right.

[[MPGH]iverson954360]

You need to clarify your equation more before we can understand what it's asking.

[Ecstasy]

Not the right Section.

[[MPGH]DoubleDutch]

The answer is always cake

[[NIG]Ghost[GA]]

The answer is always cake

I thought it was pie :[

[Black Eyed Peas]

3^x+3^(x+1)= 3²+3² =>
3^x+x+1 = 3²⁺² =>
3^2x+1 = 3⁴

I don't know how to go further...

[[MPGH]iverson954360]

3^x+3^(x+1)= 3²+3² =>
3^x+x+1 = 3²⁺² =>
3^2x+1 = 3⁴

I don't know how to go further...

Take the natural log of both sides then solve for x.

[Black Eyed Peas]

Take the natural log of both sides then solve for x.

You mean like this?

2x+1=4 => 2x=4-1 => 2x=3 => x=1.5

Then I would go back to the equasion and put the "x" into it:

3^{2(1.5) + 1} = 3⁴
3³⁺¹ = 3⁴
3⁴ = 3⁴

[Frost]

God I never understood maths ._.

[Nathan]

3^x+3^(x+1)= 3²+3² =>
3^x+x+1 = 3²⁺² =>
3^2x+1 = 3⁴

I don't know how to go further...

3² + 3² = 9 + 9 = 18
3²⁺² = 81

But the question is: 3^x+3^x+1=3²+3². What is x?
I can't seem to figure it out.

@iverson954360 , halp please

[[MPGH]Dave84311]

Better explained solution: http://www.wolframalpha.com/input/?i=3^x%2B3^%28x%2B1%29%3D3^2%2B3^2

Enjoy

[HosteD]

O man i suck hard at this!