Предмет: Математика, автор: kozari4ka

ПОМОГИТЕ СРОЧНО РЕШИТЬ,ПОЖАЛУЙСТА!
Заранее спасибо!

1)  (х по второй степени)=2х+3                      -найти корень!

Ответы

Автор ответа: anmih
0
x2-2x-3=0
D=4+12=16
x(1)=(2+4)/2=3
x(2)=(2-4)/2=-1
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