The answer is 3/4. You divide both numbers (54 and 72) by 18 and you get 3/4. Hope it helps!
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Can take another picture this one isn’t that clear for me?
If the poly's zeros are 5, -5 and 0, then the corresponding factors are
(x-5)(x+7)(x), and the function is f(x) = (x-5)(x+7)(x).
You must multiply this out and arrange the resulting terms in descending order by powers of x.
