Question 371278
{{{(y-4)^2}}}
You could write it like
(y-4)(y-4)
and then use FOIL. Or you could use the pattern
{{{(a-b)^2 = a^2 -2ab + b^2}}}
with the "a" being y and the "b" being 4. I like using the pattern:
{{{(y)^2 -2(y)(4) + (4)^2}}}
which simplifies to:
{{{y^2 -8y + 16}}}