Question

Solve the following subquestions :
(i) Write the quadratic equation, if a + B = 9 and a B = 20.​

Answer 1

Answer:

a + 20 - 9 = 0 it is a equation

Answer 2

Answer:

a+b=9

a=9-b

therefore,

putting the value of a in equation2

a*b=20

(9-b)*b=20

$9b - b ^{2} = 20$

$b ^{2} - 9b + 20 = 0$