Question

One roots of the equation 2x^2-x c=0 find c if the other roots is double

Answer 1

Answer:

1/9

Step-by-step explanation:

$2x { }^{2} - x + c = 0 \\ giv en \\ \alpha = 2 \ \beta \\ then \alpha + \beta = - b \div a \\ 3 \beta = 1 \div 2 \\ \beta = 1 \div 6 \\ then \: \alpha = 1 \div 3 \\ c \div a = \alpha \times \beta \\ c \div 2 = 2 \beta {}^{2} \\ c = 1 \div 9$