jimmyjohnsm jimmyjohnsm
  • 18-07-2015
  • Mathematics
contestada

solve the equation the square root of the quantity x plus 3 plus 4 equals 5 for the variable.

Respuesta :

Paweł19 Paweł19
  • 18-07-2015
Domain:  expression under square root is greater or equal than zero.

x+3>0
x>-3

Then:

[tex]\sqrt{x+3}}+4=5 \qquad |-4 \\ \\ \sqrt{x+3}=1 \qquad |(...)^2 \\ \\ x+3=1 \\ \\ x=-2 \in D[/tex]

So the answer is x=-2
Answer Link

Otras preguntas

SOLVE URGENT CORRECT ANSWER WILL GET BRAINLIEST
1.8 Advise businesses on FIVE ways in which professional, responsible, ethical andeffective business practice should be conducted.​
Preliminary, non-experimental, research that gathers information about behavior is called _______ research.
In 150 to 175 words, analyzes and give your opinion of the following statement. Antagonism arose among the conquered nomadic tribes of the Xiongnu.
Your summer holiday are going to begin.write a diary entry about your plans for the holiday .
URGENT PLEASE HELP: 1 - 2 cos^2r = - sin^2r - 1 True False
A police_____on my way home last night​
Complete the function table. i really need help please
537 miles in 30 hours
15. Find the perimeter of this figure. r+1 x+3 2x 1-2 HELPP