(alpha) and (beta) are the roots of the equation (2x^{2} – 3x + 4 = 0). Find (alpha + beta).
-
A.
-2 -
B.
-(frac{3}{2}) -
C.
(frac{3}{2}) -
D.
2
Correct Answer: Option C
Explanation
(alpha + beta = frac{-b}{a})
From the equation, a = 2, b = -3 and c = 4
(alpha + beta = frac{-(-3)}{2} = frac{3}{2})