Question

11) Two roots of quadratic equation are 9 and -9 frame the equation.​

Answer 1

Answer:

EQUATION :

${x}^{2} - 81 = 0.$

Step-by-step explanation:

$\alpha = 9 \: \: \: \: \: \: \: \: \: \: \: \beta = - 9 \\ \\ {x}^{2} - ( \alpha + \beta )x + \alpha \beta = 0 \\ \\ {x}^{2} - (9 - 9)x + (9)( - 9) = 0 \\ \\ {x}^{2} - 81 = 0.$