Bikvadrat tenglama. Kvadrat tenglamaga keltiriladigan tenglamalar
Javoblar ota-onalar va o‘qituvchilar uchun.
1
x⁴ - 17x² + 16 = 0 tenglamani yeching.
x = ±1, x = ±4
2
x⁴ - 4x² = 0 tenglamani yeching.
x = 0, x = ±2
3
x²/(x + 1) = 1/(x + 1) tenglamani yeching.
x = 1
4
x + 10/x = 7 tenglamani yeching (x ≠ 0).
x₁ = 2, x₂ = 5
5
x⁴ + x² + 5 = 0 tenglama nega ildizga ega emas?
Chunki x⁴ ≥ 0, x² ≥ 0, shuning uchun chap qism ≥ 5 > 0.