Solve the following problems using special product. SHOW YOUR SOLUTION.

1.) Find the area of a square whose side measures (7+4k) inches.
2.) What is the area of a rectangle if its length measures (10y+4w)cm and its with measures (10y-4w)cm.
3.) Find the area of the square shaped lot whose side measures (9m+4n-3p) inches.
4.) Find the are of rectangle whose width is (9+-3)m and whose length is (81X²+27x+9)m.
5.) Find the volume of a cube whose edge measures (2x+3) ft.​​