The two given curves are y=x+2 and y=x2
To find their points of intersection, we equate the value of y to get
x2=x+2
⇒x2−x−2=0
⇒(x−2)(x+1)=0
⇒x=2 or x=−1.
The graphs of the curves are given below.

Required area is the area of the shaded portion.
Area =∫−12(yline−yparabola)dx
=∫−12(x+2−x2)dx
Using ∫xndx=n+1xn+1
=[2x2+2x−3x3]−12
=(2+4−38)−(21−2+31)
=6−38−21+2−31
=8−3−21
=29 sq units.