Answered

Makakuha ng eksaktong mga sagot sa iyong mga tanong sa IDNStudy.com. Ang aming komunidad ay nagbibigay ng eksaktong sagot upang matulungan kang maunawaan at malutas ang anumang problema.

method of completing the squares HEEEEELP TT

Sagot :

for example...
x^2-4x-8y-28=0
in solving this kind of problem, first, group the equation like this...
(x^2-4x) - (8y+28) = 0
then, complete the equation like this...
(x^2-4x+4) - (8y+28+4) = 0
how I get this answer? simple...
[1/2(b)]^2 = [1/2(4)]^2 = 4.
after, if you get 4... add 4 to the constant to balance..
then, factor the equation..
(x-2)^2 - (8y+32) = 0
(x-2)^2 - 8(y+4) = 0
that's the final answer...