15) If ‘x’ is real (x+2)>square root x+4 , then ​

Question

15) If ‘x’ is real (x+2)>square root x+4
, then

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Sadie 1 month 2021-10-22T00:25:19+00:00 1 Answer 0 views 0

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    0
    2021-10-22T00:26:26+00:00

    Answer: I will not write the answer but tell a example

    Step-by-step explanation:

    x<−2

    x>0

    −3<x<0

    −3<x<4

    Answer :

    B

    Solution :

    If x is real and satisfies ………..

    Given x+2>X+4−−−−−√⇒(x+2)2>(x+4)

    ⇒x2+4x+4>x+4⇒x2+3x>0

    ⇒x(x+3)>0⇒x<−3orx>0

    ⇒x>0(x+2 must be positive).

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