2v=3-7
2v=-4 divide both sides
v=-2
Answer:
You find the area of all the faces of the square pyramid, then add them together to get the surface area.
Answer:

Step-by-step explanation:
You can multiply this out to get the full equations.
It's to the 4th degree so the x on the outside has to be squared to add the fourth degree.
To get other zeros:
x + 3 = 0
x = -3
x - 4 = 0
x = 4
Hope this helped. :0)