Question

find the quadratic polynomial whose sum is 9 product is -12​

Answer 1

Answer:

x²-9x-12=0

Step-by-step explanation:

α+β=9   (sum of the roots)

αβ=-12    (product of the roots)

Quadratic equation x²-(α+β)x+αβ=0

therefore the quadratic equation is x²-9x-12=0