The numbers are 18 and 12.
18 + 12 = 30
18 + 3(12) = 54
Answer:
21+3x
Step-by-step explanation:
multiply the 3 by everything inside the parentheses
Answer:
Step-by-step explanation:
if the roots are 3 and -6, we can start with:

But the leading coefficient must be 3, we just add a 3 to one of the x's:

But now we have to make sure the roots work again:

So our equation is:
[/tex]f(x)=3x^2+9x-54[/tex]