If (x + 1)^2 – 2x 2(x + 1) + 2, then x cannot equal which one of the

Question

If  (x + 1)^2 – 2x > 2(x + 1) + 2 , then x cannot equal which one of the following?

(A) –5 
(B) –3 
(C) 0 
(D) 4 
(E) 5

LevanKhukhunashvili · Answer

Houston I have a problem

Lets simplify the left hand: x^2+1+2x-2x=x^2+1 lets simplify the right hand 2x+4 x^2+1>2x+4 x^2-2x-3>0 (x-3)(x+1)>0 X<-1 and X>3 IMO Both C and D are correct

KSBGC · Answer

Given,

(x + 1)^2 – 2x > 2(x + 1) + 2

(x + 1)^2 > 2x + 2(x + 1) + 2

(x + 1)^2 > 2x + 2x + 2 + 2

(x + 1)^2 > 4x + 4

Now plug value from options.

x can't be 0.

C is the correct answer.

LevanKhukhunashvili · Answer

Please plug D) 3

KSBGC · Answer

Bunuel , there are 2 answer choices. Kindly , review it.

Thanks.

lucajava · Answer

You're right.  C  is the only correct answer if  (x + 1)^2 – 2x ≥ 2(x + 1) + 2 , but not here.

Bunuel · Answer

___________________
Fixed. Thank you.

Archit3110 · Answer

solve  (x + 1)^2 – 2x > 2(x + 1) + 2 
(x-3)*(x+1)>0
so x cannot be 0 else we get is -ve option 
IMO C

Kinshook · Answer

Asked: If  (x + 1)^2 – 2x > 2(x + 1) + 2 , then x cannot equal which one of the following?

x^2 +2x +1 -2x > 2x +2 +2
x^2 +1 -2x -4 >0
x^2 -2x -3 >0
(x -3)(x+1)>0
x>3 or x<-1

x can not be 0
IMO C

Posted from my mobile device

CEdward · Answer

If (x+1)^2 – 2x>2(x+1), then x cannot equal which one of the following?

(A) –5
(B) –3
(C) 0
(D) 4
(E) 5

(x+1)^2 – 2x>2(x+1) ------ > (x-3) (x+1) > 0

This implies that x > 3 or x <-1. 0 is the only option that fails the test. 
 
C is the answer.

If (x + 1)^2 – 2x > 2(x + 1) + 2, then x cannot equal which one of the

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