3(4-2x)+6=-2x+4 3*4-3*2х+6=-2х+4
12-6х+6=-2х+4
18-6х=-2х+4
-6х+2х=-18+4
-4х=-14
-х=14:4
х=-3,5
f'(x) = sinx + 0,5 * sin2x = sin x + sin x * cos x = sin x * (1 + cos x) = 0
(ED-EF)+(DM+MK)+x=(PK-PC)+FA
FD+DK+x=CK+FA
FK+x=CK+FA
x=CK+(FA-FK)
x=CK+KA
x=CA
Раскрыть скобки
х²-11х-2х+22-8х+6х²=
7х²-21х+22