Question

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

Answer 1

False !

If $x=4:$

$\sqrt{2(4)+1+3}= \sqrt{12}\\\\\sqrt{12}\neq0$

In fact, the true answer is $x=-2$

$\sqrt{2x+1+3}=0\\\\\sqrt{2x+4}=0\\\\2x+4=0\\2x=-4\\x=-2$

Answer 2

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!