(2х-1)(х+3)-(х-2)(2х-2) При х=11

Question

(2х-1)(х+3)-(х-2)(2х-2)
При х=11

Answer 1

На фото..................................................

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Answer 2

(22-1)(11+3)-(11-2)(22-2)=21*14-9*20=
=294-180=114