Question

Write the quadratic polynomial whose zeroes are -3&4

Answer 1

Answer:

k[x^2-x-12]

Step-by-step explanation:

alpha=-3

beta=+4

alpha+beta=+1

alphaxbeta=-12

so

K[x^2-(alpha+beta)+alphaxbeta]

now,

K[x^2-x-12] is the quadratic polynomial whose zeroes are -3 and 4.

Answer 2

Answer:

let quadratic equation is ax^2+bx+c=0

now dividing this equation by 'a' we get

x^2×b/ax+c/a=0 ------1equation

now we are given that -b/a=-3=> b/a=3

and c/a=4

now put values in 1equation we get

x^2+3x+4=0

x^2+3x=-4

hence this is the required quadratic equation.