1) (a+9)^2
2) (7x-1)^2
3) (y+2x^2)^2
a) 4x^2+20x+25=0
D= 400-400=0
x=-20/8= -2.5
b) 2у^2+10у+12,5=0.
D=100- 100=0
x= -10/4= -2.5
а)(a+9)^2,б)(7x+1)^2,в)(2х^2+у)^2
1) (a+9)^2
2) (7x-1)^2
3) (y+2x^2)^2
a) 4x^2+20x+25=0
D= 400-400=0
x=-20/8= -2.5
b) 2у^2+10у+12,5=0.
D=100- 100=0
x= -10/4= -2.5
а)(a+9)^2,б)(7x+1)^2,в)(2х^2+у)^2