Решите уравнение 5 (3-2у)-4 (9-у)=3 (у+5)

Question

Решите уравнение 5 (3-2у)-4 (9-у)=3 (у+5)

Answer 1

5 (3-2у)-4 (9-у)=3 (у+5)
15-10y-32- 4y=3y+15
-10y-4y+3y=-32
14y^2+3y=-32
14y^2+3y-32=0
D=9-4*14*(-32)=9-(52*(-32))=9+1664=1673

Comments

ou izvinaus dumala hto nado heres deskrimenant.