amydamato911 amydamato911
  • 17-07-2020
  • Mathematics
contestada

What are the solutions to log (x2+8)= 1 +log (x)?

Respuesta :

surjithayer10 surjithayer10
  • 17-07-2020

Answer:

Step-by-step explanation:

log(x²+8)=1+log(x)

log(x²+8)-log(x)=1

[tex]log\frac{x^2+8}{x} =1\\\frac{x^2+8}{x} =10^1\\x^2+8=10x\\x^2-10x+8=0\\x=\frac{10 \pm \sqrt{(-10)^2-4*1*8} }{2} \\=\frac{10 \pm \sqrt{100-32} }{2} \\=\frac{10 \pm \sqrt{68} }{2} \\=\frac{10 \pm 2\sqrt{17} }{2} \\=5 \pm \sqrt{17}[/tex]

Answer Link

Otras preguntas

Write the following inequality in slope-intercept form. 6x-2y is greater than or equal to 12
A summary of observational data is called a/an ____________.
Which statements are correct regarding mathematics in the Egyptian, Chinese, and Babylonian cultures? Check all the apply. -Both the Egyptian and Chinese number
What are words with the root gest?
Prior to the eighteenth century, doctors believed that a person suffering from a chronic illness had an imbalance of body fluids. as a result, they would remove
When defining a medical word, first define the suffix. true or false.?
In an ecosystem, energy from the sun is transferred by way of _____.
Why is it important that food servers are trained to know food ingredients?
What's 2+2? I'm in 8th can't figure it out
solve for the following equation for x. -10(x-1)=10-10x