Ushtrimi 6

Kryeni veprimet, duke ndjekur shembullin e dhënë.

Shembull:

$$(5x + 3y)^2 = (5x)^2 + 2(5x)(3y) + (3y)^2 = 25x^2 + 30xy + 9y^2$$

a) $(2x - y)^2$

b) $(3a + 2)^2$

c) $(4a - 3b)(4a + 3b)$

d) $\left(\frac{2}{3}x + 3y\right)^2$

e) $\left(\frac{5}{2}m - \frac{2}{5}n\right)\left(\frac{5}{2}m + \frac{2}{5}n\right)$

f) $\left(4 - \frac{3}{2}t\right)^2$

g) $(1 - 3xy)^2$