Question 567955
Solve:
{{{y^2-8y+16 = 49}}} Subtract 49 from both sides.
{{{y^2-8y-33 = 0}}} Factor the trinomial.
{{{(y+3)(y-11) = 0}}} Apply the zero product property.
{{{y+3 = 0}}} or {{{y-11 = 0}}} 
If {{{y+3 = 0}}} Subtract 3 from both sides.
{{{y = -3}}} This is one solution.
If {{{y-11 = 0}}} Add 11 to both sides.
{{{y = 11}}} This the other solution.