Help! Please help me identify any mistakes I've done in here. The answer I'm getting is different from that given in key :(
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Divyankasc:
Also, solve it
the solution x belongs to R and x greater than or equal to -5
Thanks but I suppose there's some mistake
remaining process is correct
But, I got the answer. Thanks! :)
ok
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Answered by
6
i hope this will useful to u
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Thanks sir!! :)
Do you know where did I go wrong?
yes
Can you please tell me where
second line from last
Okay, I'll see
Thanks ^^
:)
Answered by
3
u r doing mistake here...avoid simplifying the whole equation when there is symmetry...because if u simplify this equation then you will get "4 " degree biquadratic equation which is tough to solve...so in this type of questions use substitution method...
like here we can see that "( x^2 + 3x ) is same in both the equation so put this value to another variable it will reduce calculation ..
answer is :-
=) x € (-°° ,-4] U [-2,-1 ] U [ 1 , °°)
_________________
hope it will Help u
like here we can see that "( x^2 + 3x ) is same in both the equation so put this value to another variable it will reduce calculation ..
answer is :-
=) x € (-°° ,-4] U [-2,-1 ] U [ 1 , °°)
_________________
hope it will Help u
Attachments:
Hey, thanks! :D
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