hDescompuneti in factori:

a)(x+1)(x+3)²-4(x+1)

b)(x+3)(2x+1)²-16(x+3)

c)(x-3)(x+2)²-x+3

d)(x-4)(2x+1)²-x+4

e)(x+8)²-25

f)(2x-5)²-36

g)(x-5)²_9x²

h)(2x+5)²-(x+3)²

i)(3x+4)²-(x+5)²

j)(2x+1)²-(x-1)²

k)(3x+2)²-(2x+1)²

L)(3x-1)²-4(x+1)²

m)(4x-3)²-9(x+2)²