(x+2)²-3²=(x+2-3)(x+2+3)=(x-1)(x+5).
(х+2)^2-9
2х+4-9
2х-5.
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(x+2)²-3²=(x+2-3)(x+2+3)=(x-1)(x+5).
(х+2)^2-9
2х+4-9
2х-5.