3! = 3 * 2 * 1 = 6.
6 способов.
12 и 32=4. 14 и 42=14. 68 и 102=34. 360 и 336=24. 32,96 и 112=16
(8х+10)(3-х)=(11-2х)(4х+5)-5
24х-8х^2+30-10х=44х+55-8х^2-10х-5
24х+30-10х=44х+55-10х-5
24х+30=44х+55-5
24х+30=44х+50
24х-44х=50-30
-20х=20
х=20:(-20)
х=-1
1.а) 24х-18х=-10.2
6х=-10.2|:6
Х=-1.7
б)3/19х-7/38х=-5/19
-1/38х=-5/19|:-1/38
Х=10