Question

Find a quadratic polynomial whose sum of zeroes is 15 and one zero is -3​

Answer 1

Answer:

given- sum of zeroes is 15

alpha + beta = 15

let alpha be -3

- 3 + beta =15

beta =18

Step-by-step explanation:

now,

product of zeroes= (-3)×15= -45

quadratic polynomial=

k[x2-(sum).x+ product]

put k=1

x2-15x-45

hope this helps you!!!

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Answer 2

Answer:

$\alpha + \beta = 15 \\ - 3 + \beta = 15 \\ \beta = 15 + 3 \\ \beta = 18$