3. (a1-g8-4) \(x^3-x^2-4x+m=0\) tenglamaning ildizlaridan biri 1 ga teng. Shu tenglamaning ildizlari ko‘paytmasini toping. A) −4; B) −2; C) 2; D) 4.

Ma’lum ildizni tenglamaga qo‘yamiz: \(1^3-1^2-4\cdot1+m=0\), bundan \(m=4\).

Monik kub tenglama \(x^3+ax^2+bx+c=0\) ildizlarining ko‘paytmasi \(-c\) ga teng. Bu yerda ozod had \(m=4\), demak ildizlar ko‘paytmasi \(-4\).

Javob: A) −4.