ichigo86 ichigo86
  • 19-08-2020
  • Mathematics
contestada


[tex] \sqrt{x - 3} + \sqrt{x + 5} = 4[/tex]
​

Respuesta :

Аноним Аноним
  • 19-08-2020
  • Answer:

x = 4

  • Step-by-step explanation:

√x-3 + √x+5 = 4

(√x-3)² = (4-√x+5)²

x-3 = 16 - 8√x+5 + x+5 | -x

- 3 = 21 - 8√x+5

- 24 = - 8√x+5 | ×(-1)

24 = 8√x+5 | : 8

3 = √x+5

3² = (√x+5)²

9 = x + 5

x = 4

Answer Link

Otras preguntas

A bicyclist travels 6 miles, in 20 minutes. Which expression does not represent the rate of the bicyclist? A: 3/10 miles per minute B:3 1/3 minutes per mile C:
How many milliliters of 0.100 m naoh are required to neutralize 9.00 ml of 0.0500 m hcl?
is a sponge permeable
Does anyone know what X equals to
there are 35 pens in a box 15 of the pens are green the rest of them are red write down the ratio of the number of green pens to the number of red pens give you
The male japanese beetle detects and destroys the female pheromone molecule. what tells the male protein to destroy the female pheromone molecule?
How many times larger is 7400 than 74?
What are the digits of pie?
Water is pretty small. why does it need proteins (the aquaporins) to cross the plasma membrane?
Mark has downloaded four times as many songs on his music player as chloe. if mark has 440 songs, how many songs does chloe have ?