Sorry for the bad handwriting but here's your answer :)
Answer:

Step-by-step explanation:

Answer:
To fine the surface area is to add all the area of the faces
Step-by-step explanation:
x²+2x-3=0
(x²+3x)-(x-3)=0
x(x+3)-1(x+3)=0
(x-1)(x+3)=0
x=1 or x=-3