Question

Find the zeros of the function: f(x) = x2 - 9x + 20
Enter the largest zero value.

Answer 1

(x-5)(x-4) here is factorized

Answer 2

x=5
x=4

Answer 3

can i ask you how you found that, i have such a hard time with these problems. i don't understand them whatsoever :/

Answer 4

so -9=(-5)+(-4)
and +20=(-5)*(-4)

yes ???

this is the secret of this ...

hope that is understandably

good luck

bye

Answer 5

thank you!