Question

please help me with this question​

Answer 1

Answer:

Option(d) is correct

Given:

• x = -1 is zero of 2x² + k - 5x

Step-by-step explanation:

If x = -1 is zero of P(x) Then,

→ P(-1) = 0

→ 2(-1)² + k - 5(-1) = 0

→ 2 + k + 5 = 0

→ k = 7

If k = 7 then,

k² = (7)² = 49