(x+3) (y+5)
xy + 5x + 3y + 15
x + y +8
(x + 9) (x - 5)
x + x + 4
x squared + 9 + 4 + 5
X Squared + 4x - 45
(y - 5) (y + 8)
y squared + - 3
y squared + 13
y squared + 3y - 40
(m + 8) (m + 15)
m squared + 8m + 15
m squared + 23m + 120
m cubed + 23m + 120