What is the answer to 20*log_{10}(x^2-15)=0 ?

The answer to 20*log_{10}(x^2-15)=0 is x=4,x=-4

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20*log_{10}(x^2-15)=0

20 \cdot lo g_{10} (x^{2} - 15) = 0

x = 4, x = - 4

Solution steps

20 lo g_{10} (x^{2} - 15) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

lo g_{10} (x^{2} - 15) = 0

Solve

lo g_{10} (x^{2} - 15) = 0 : x = 4, x = - 4

Verify Solutions:

x = 4

True

, x = - 4

True

The solutions are

x = 4, x = - 4

y, x = lo g_{4} (y)

2 + 3 lo g_{12} (3 d) = 5

lo g_{x} (\frac{1}{243}) = 5

lo g_{4} (\frac{2 b + 4}{3 b - 2}) = 4

x, ln (\frac{x}{y}) = 1

What is the answer to 20*log_{10}(x^2-15)=0 ?
The answer to 20*log_{10}(x^2-15)=0 is x=4,x=-4
Solve for x: 20*log_{10}(x^2-15)=0
The solution is x=4,x=-4