Question

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

Answer 1

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 2

False !

If
`x=4:`


`√(2(4)+1+3)= √(12)\\\\√(12)\\eq0`

In fact, the true answer is
`x=-2`


`√(2x+1+3)=0\\\\√(2x+4)=0\\\\2x+4=0\\2x=-4\\x=-2`