What is the answer to 2^x-4^x-72=0 ?

The answer to 2^x-4^x-72=0 is No Solution for x\in\mathbb{R}

Solve for x: 2^x-4^x-72=0

The solution is No Solution for x\in\mathbb{R}

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2^{x} - 4^{x} - 72 = 0

No Solution for x \in R

Solution steps

2^{x} - 4^{x} - 72 = 0

Apply exponent rules

2^{x} - (2^{x})^{2} - 72 = 0

Rewrite the equation with

2^{x} = u

u - (u)^{2} - 72 = 0

Solve

u - u^{2} - 72 = 0 :

No Solution for

u \in R

No Solution for x \in R

2^{x + 1} = 300

2^{3 x} 2^{5} = 256

0^{x} = 1

2^{x} e^{x + 1} = 3

What is the answer to 2^x-4^x-72=0 ?
The answer to 2^x-4^x-72=0 is No Solution for x\in\mathbb{R}
Solve for x: 2^x-4^x-72=0
The solution is No Solution for x\in\mathbb{R}