Question 1204284
a quadratic function f whose zeros are {{{x1=-12}}} and {{{x2=-3}}}

{{{f(x)=(x-x1)(x-x2)}}}

{{{f(x)=(x-(-12))(x-(-3))}}}

{{{f(x)=(x+12)(x+3)}}}

{{{f(x)=x^2 + 15x + 36}}}

{{{ graph( 600,600, -15, 15, -15, 15, x^2 + 15x + 36) }}}