sandersmer
sandersmer sandersmer
  • 30-01-2017
  • Mathematics
contestada

classify the solutions of 3/x+5+1/5=2x+5 as extraneous or non-extraneous

Respuesta :

Аноним Аноним
  • 30-01-2017
It's extraneous. I know this because it leads to a straight answer. 

3x+5+15=2x+5
26x
+15
5x
=2x+5

26x+15=10x2+25x
26x
+15
−(10x2+25x)
=10x2+25x−(10x2+25x)

−10x2+x+15=0
x=−b±√b2−4ac2a

x=−(1)±√(1)2−4(−10)(15)2(−10)

x=−1±√601−20

x=120+−120√601 or x
=120+120√601

x=120+−120√601

x=120+120√601

x=120+−120√601 or x=120+120√601

Hoped I helped!
Answer Link

Otras preguntas

Meat is a rich source of Vitamin C, calcium, and other minerals.
Im struggling with these 2 problems
Im struggling with these 2 problems
Location B is which place? Canaan Egypt Syrian Desert Mediterranean Sea
Water flows through a pipe at a rate of 7 liters every 9 days. Express this rate of flow in gallons per week. Round your answer to the nearest hundredth.
The amplitude of a mechanical wave shows _____. A. how fast the wave is moving B. how many waves pass a given point in one second C. how many seconds it takes a
A one-day pass to an amusement park costs $40. A round-trip bus ticket to the park costs $5. Write two equivalent expressions to find the total cost of a one-da
What impact did the treaty of Paris have on the North America colonies
How can you use an equation to make a prediction from a pattern?
Roxy's new employer pays employees bimonthly, which is twice a month. She'll earn $30 per hour with the new company. She plans to continue making extra money by