If one zero of the polynomial 2x2 + 3x + K = 1/2, find the value of K and the - Maths - Introduction to Trigonometry

Question

If one zero of the polynomial 2x2 + 3x + K = 1/2, find the value
of K and the other zero

Virok Sharma · Accepted Answer

I hope the polynomial is 2x2 + 3x + k
Let the other root beα α * 1/2 = k /2 (1)
α + 1/2 = -3/2
Hence,α = -2
From (1), -2 * 1/2 = k/2
hence, k = -2

If one zero of the polynomial 2x2 + 3x + K = 1/2, find the value of K and the other zero.