Find the product of:
(a) [tex]$x^2 + 3x + 2$[/tex] and [tex]$x + 1$[/tex]
(b) [tex]$x^2 - 7x + 12$[/tex] and [tex][tex]$x - 3$[/tex][/tex]
(c) [tex]$a^2 - 11a + 30$[/tex] and [tex]$a - 5$[/tex]
(d) [tex]$a^2 - 49a + 60$[/tex] and [tex][tex]$2a + 5$[/tex][/tex]
(e) [tex]$3x^2 + 10x + 3$[/tex] and [tex]$x + 3$[/tex]
(f) [tex]$2x^2 + 11x + 5$[/tex] and [tex][tex]$2x + 1$[/tex][/tex]
(g) [tex]$5x^2 + 11x + 2$[/tex] and [tex]$4x + 3$[/tex]
(h) [tex]$2x^2 + 17x + 21$[/tex] and [tex][tex]$2x + 3$[/tex][/tex]