Ответ:
(2x+3)²-49=0
(2x-4)×(2x+10)=0
(x-2)×(x+5)=0
x1=-5 x2=2
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Ответ:
(2x+3)²-49=0
(2x-4)×(2x+10)=0
(x-2)×(x+5)=0
x1=-5 x2=2