tashiabrad18 tashiabrad18
  • 04-05-2018
  • Mathematics
contestada

square root 2x+1 +3=0 is x=4 Do you agree? Explain why or why not

Respuesta :

Stiaen
Stiaen Stiaen
  • 04-05-2018
False !

If [tex]x=4:[/tex]

[tex] \sqrt{2(4)+1+3}= \sqrt{12}\\\\\sqrt{12}\neq0[/tex]

In fact, the true answer is [tex]x=-2[/tex]

[tex]\sqrt{2x+1+3}=0\\\\\sqrt{2x+4}=0\\\\2x+4=0\\2x=-4\\x=-2[/tex]

Answer Link
braidlynatkinso
braidlynatkinso braidlynatkinso
  • 04-05-2018
X is not 4
The correct answer would be x=-2
2x+1+3=0
2x+4=0
-4 -4
2x= -4
2 2
X=-2

Hope this helps!
Answer Link

Otras preguntas

anyone please help and explain !! thanks
Which of these is an important part of any personal health plan for physical fitness? A. Intense workouts B. An action plan for weight loss C. Regular
In an essay, unified lines are called a paragraph. however, in a poem, unified groups of lines are called ___.
High School Pre Cal Sandra can run a mile in 6 minutes. At her high school track, shown below, 4 laps around the track equals 1 mile. If Sandra starts at point
Friend started smoking marijuana with some people you know from school he smokes each time you are around the people from school and you have decided to talk wi
what european power established the encomienda system in the americas ?
sin(x)^4+ cos(x)^4=1/2
Identify each​ noun: I have to read three chapters and write an essay. A. essay B. ​chapters, essay C. chapters D. ​read, write
2x+4=2(x+1) Replace x with 1 number for it to equal each other
which term best describes any ladder that can be readily moved or carried