Question

find the quadratic polynomial whose zeroes are 5 and -11

Answer 1

Answer:

hey mate it is solved underneath.

if zeoes are 5 and -11 then factors are (x-5) and (x+11)

(x-5)(x+11) by identity (x+a)(x-b)

x^2 +11x - 5x -55

x^2 +6x -55 is the ans

Answer 2

there is one formula to find a quadratic equation if you know it's roots

i.e x²- (à+ß)x +àß

so here let à=5 and ß =-11

so à+ß =5-11 = --6

àß=-55

putting values in formula we get quadratic equation

x²-(-6)x -55

x²+6x-55