The function p(x) = –8x2 – 64x can be written in vertex form p(x) = a(x – h)2 + k, where a =

Means compplete the square on one side

basically get into form

ok, group x terms

factor out linear coefient (-8)

take 1/2 of the linear coefient and square it
8/2=4, 4^2=16
add positive and negaitve of that inside parntheaese

factor perfect square

expand


in vertex form it is

Im sorry but what on

The answer is