решите уравнения:
1)196х²-(14х+3)²+80х=-5
2)-2,89х²+(1,7х+2)²+0'2х=11
3)(2,4х-1)²-0,2х-5,76х²=3
1)196х²-(14х+3)²+80х=-5
2)-2,89х²+(1,7х+2)²+0'2х=11
3)(2,4х-1)²-0,2х-5,76х²=3
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196х²-(14х+3)²+80х=-5196х²-196х²-84х-9+80х=-5
-4х=-5+9
х=4:(-4)
х=-1
-2,89х²+(1,7х+2)²+0'2х=11
-2,89х²+2,89х²+6,8х+4+0,2х=11
7х=11-4
х=11:11
х=1
(2,4х-1)²-0,2х-5,76х²=3
5,76х²-4,8х+1-0,2х-5,76х²=3
-5х=3-1
х=2:(-5)
х=-0,4