Question

ontained the quadratic equation if its roots are -3‚ -7​

Answer 1

Step-by-step explanation:

let alpha= -3 and beta = -7

the required equation is

x²-(alpha+beta)x+alpha× beta=0

x²-(-3-7)x + -3×-7=0

x²-(-10)x + 21=0

x²+10x+21=0

Answer 2

x= -3, y= -7

x+y= -3-7= -10

xy=21

upto now consider x as alpha and y as beta

x²-(alpha +beta)x+(apha×beta)

x²+10x+21