1. (y+4)^2=3y^2-8
y^2+8y+16-3y^2+8=0
-2y^2+8y+24
D= 8^2-4*(-2)*24=64+192=256
X1 = (-8+16)/(-2*2) = 8/-4 = -2
X2 = (-8-16)/(-2*2) = -24/-4 = 6
2. (9-4x)^2=5(3x+2)
81-72x+16x^2 = 15x + 10
16x^2 - 15x + 71 = 0
D= -15^2 -4*16*71
D<0 => уравнение не имеет корней
1. (y+4)^2=3y^2-8
y^2+8y+16-3y^2+8=0
-2y^2+8y+24
D= 8^2-4*(-2)*24=64+192=256
X1 = (-8+16)/(-2*2) = 8/-4 = -2
X2 = (-8-16)/(-2*2) = -24/-4 = 6
2. (9-4x)^2=5(3x+2)
81-72x+16x^2 = 15x + 10
16x^2 - 15x + 71 = 0
D= -15^2 -4*16*71
D<0 => уравнение не имеет корней