Answer:

x ² + 2 x > 3

x ²  + 2 x – 3 > 0

( x - 1 ) ( x + 3 ) > 0

x =1  x = -3

x ≤ -3 or x > 1

                                          -3                     1

 {x: x  ≤ -3 or x  >1 }, all values of x greater than or equal to 1 or less than or equal to –3.