(2x+5)во2-(2x-3)(2x+1)=4 решите уровнение

Question

(2x+5)во2-(2x-3)(2x+1)=4 решите уровнение

Answer 1

4х^2+20x+25-(2x-3)(2x+1)=4
4x^2+20x-4x^2+4x+3=-21
24x+3=-21
24x=-21-3
24x=-24
x=-24:24
x=-1

Comments

спс

Answer 2

(2х+5)'2-(2х-3)(2х+1)=4
4х'2+20х+25-4х'2-2х+6х+3=4
24х=4-25-3
24х=-24
х=-1
ответ: х=-1

Comments

спс