Ushtrimi 7

Zbërtheni dhe thjeshtoni shprehjet.

a) $(x + 5)(x + 1)$

b) $(x - 3)(x + 4)$

c) $(x + 2)(x - 6)$

d) $(x - 3)(x - 8)$

e) $(x + 5)^2$

f) $(x - 4)^2$

g) $(\frac{2}{3}x - 6y)^2$

h) $(\frac{1}{2}m + 2n)(\frac{1}{2}m - 2n)$