Let's simplify the expression (a+3)^2 - (a-2)(a+2) when a = -3.5:
(-3.5+3)^2 - (-3.5-2)(-3.5+2)(-0.5)^2 - (-5.5)(-1.5)0.25 - 8.25= -8
Now, let's simplify the expression (5a-10)^2 - (3a-8)^2 + 132a when a = -6:
(5(-6)-10)^2 - (3(-6)-8)^2 + 132(-6)(-30-10)^2 - (-18-8)^2 - 792(-40)^2 - (-26)^2 - 7921600 - 676 - 792= 132
Let's simplify the expression (a+3)^2 - (a-2)(a+2) when a = -3.5:
(-3.5+3)^2 - (-3.5-2)(-3.5+2)
(-0.5)^2 - (-5.5)(-1.5)
0.25 - 8.25
= -8
Now, let's simplify the expression (5a-10)^2 - (3a-8)^2 + 132a when a = -6:
(5(-6)-10)^2 - (3(-6)-8)^2 + 132(-6)
(-30-10)^2 - (-18-8)^2 - 792
(-40)^2 - (-26)^2 - 792
1600 - 676 - 792
= 132