a^2-b^2=100
3a-2b=30 b=(3a-30)/2
a^2 - ((3a-30)/2)^2 =100
a^2 - 9(a-10)^2/4 = 100
a^2 -9(a^2-20a+100)/4 = 100
4a^2 -9a^2 +180a -900 = 400
5a^2-180a+1300=0
a^2 -36a +260 = 0
a1 = 18 + (корень из 18^2- 260) = 18 + 8 = 26 a2=18-8=10
b1 =(26*3-30)/2 = 24 b2 = (10*3-30)/2 = 0
a1=26 b1=24
a2=10 b2=0
92107282-38284445007-810=-3736336408
1. 64
2. 156
3. 245
4. 560
5. 45
6. 3
7. 116
8. 1750
9. 125
10. 24
11. 4 кг 175 г
12. 5
13. 20 т
14. 7кг
15. 27
16. 40