Question

(i) Write the quadratic equation, if a + B = 9 and a ß = 20.​

Answer 1

Step-by-step explanation:

α + β=9

α x β=20

α + β=-b/a (a,b,c represent the first second third co-efficents of the equation)

α x β=c/a

-b/a=9

c/a=20

the general form of the quadratic equation is

ax² + bx +c =0

so

x²-9x+20=0