What is the answer to log_{2}(x^2-15x)=3 ?

The answer to log_{2}(x^2-15x)=3 is x=(15+sqrt(257))/2 ,x=(15-sqrt(257))/2

Solve for x: log_{2}(x^2-15x)=3

The solution is x=(15+sqrt(257))/2 ,x=(15-sqrt(257))/2

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lo g_{2} (x^{2} - 15 x) = 3

x = \frac{15 + 257}{2}, x = \frac{15 - 257}{2}

Decimal Notation

x = 15.51560 \dots, x = - 0.51560 \dots

Solution steps

lo g_{2} (x^{2} - 15 x) = 3

Apply log rules

x^{2} - 15 x = 8

Solve

x^{2} - 15 x = 8 : x = \frac{15 + 257}{2}, x = \frac{15 - 257}{2}

x = \frac{15 + 257}{2}, x = \frac{15 - 257}{2}

2 - lo g_{10} (2 + x) = 0

ln (x + 4) - ln (x) = 3

- 1.25 ln (10 - 0.8 x) + 1.4539 = 3

ln (8 w - 6) = ln (6 w)

0 = 20 lo g_{10} (3 x)

What is the answer to log_{2}(x^2-15x)=3 ?
The answer to log_{2}(x^2-15x)=3 is x=(15+sqrt(257))/2 ,x=(15-sqrt(257))/2
Solve for x: log_{2}(x^2-15x)=3
The solution is x=(15+sqrt(257))/2 ,x=(15-sqrt(257))/2