_x^2+4y+4y^2
2. 169k^2-16
3. 9t^2-15t+25-25=9t^2-15t=3t(t-5)
4. 9q^2-12q+4+p^2-9q^2=p^2-12q+4
5. n = 10c^3d
Ответ: точка N. Наздоровье.
5/12 * 4 +7=5/3+7=1 2/3+7=8 2/3
4/9 * 3/4 +2/3=1/3+2/3=3/3=1
1) 1,5*10+2,08*45 = 15+93,6=108,6; 2)12,08*100-75,6*11=1208-831,6=376,4; 3)46,131*10+91,05=461,31+91,05=552,36.