Question

the linear factors of the quardratic equation x²+kx+1=0​

Answer 1

Answer:

X and KX Are the factors

Answer 2

Answer:

k ≥ 2 or k ≤ - 2

given, quadratic equation, x² + kx + 1 = 0

a quadratic equation can be factorize in two linear equation only when the roots of quadratic equation are real.

i.e., D = b² - 4ac ≥ 0

⇒ k² - 4 × 1 × 1 ≥ 0

⇒k² - 4 ≥ 0

⇒(k - 2)(k + 2) ≥ 0

⇒k ≥ 2 or k ≤ -2.