(Sq rt 4x+3) = -2 please help
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Question

anonymous · Answer

start by raising both sides to the 2nd power this will clear the radical and then you solve for x like normal

anonymous · Answer

need all steps please, did that and got wrong answer.

dumbcow · Answer

No solution
the sqrt of a number must be positive

anonymous · Answer

answer should be "null"

anonymous · Answer

sq -2= positive 4?!  where am i going wrong?

anonymous · Answer

raise the -2 to the 2nd power and you get 4

anonymous · Answer

i have the following:   4x+3=4 ,  4x= 1,  x= 1/3

anonymous · Answer

now the radical is removed from the other side because you did that also imaginarly

anonymous · Answer

1/4 th, sorry.. not 1/3

dumbcow · Answer

that is correct
so x = 1/4 could be a solution
however sqrt(4) does not equal -2

anonymous · Answer

so, if I get an answer.. how is it a null? like the book answer says?

dumbcow · Answer

by plugging it back into original equation and check if equality holds
if it doesn't then its no solution or "null"

anonymous · Answer

ohh, right.. i forgot that ty , ty