Դասարանական Աշխատանք

ax^2 + bx + c = 0
ax^2 + c = 0
ax^2 + bx = 0

Վարժ. 557
ա) x^2 = 3
X1 = V3
X2 = — V3
բ) x^2 = 2,25
X1 = 1,5
X2 = — 1, 5
գ) 3x^2 = 1
X1 = V1/3
X2 = -V1/3
դ)x^2 = -6 Չի լուծվում

x^2 — 2,25 = 0
D = 0 — 4 *1 * )-2,25) = 0 + 9 = 9
X1 = 0 — 3/2 = -3/2 = -1,5
X2 = 0 + 3/2 = 3/2 = 1,5

Վարժ. 558
ա) -0,5x^2 = 0
x^2 = 0
x = 0
բ) 7x^2 — 1 = 0
7x^2 = 1
x^2 = 1/7
X1 = V1/7
X2 = -V1/7
գ)72 — x^2 = 0
x^2 = 72
72 = x^2
X1 = V72
X2 = -V72
դ) 8x^2 — 12 = 0
8x^2 = 12
x^2 = 12/8 = 3/2