if i have the equation -x^2-12x-4
then when it is in completed sq format is it...
-(x+6)^2...
or
-(x-6)^2....
???
2006-10-03 08:48:31 · 5 answers · asked by 0425x 2 in Science & Mathematics ➔ Mathematics
-(x^2+12x+4)
=-(x+6)^2+32
2006-10-03 08:53:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
y= -(x+6)^2-32
2006-10-03 08:52:43 · answer #2 · answered by StellaLuna 2 · 0⤊ 1⤋
-(x² + 12x + 4) = 0
-(x² + 12x) = 4
-(x² + 12x + 36) = 40
-(x + 6)² = 40
-(x + 6) = + sqrt(40) or - sqrt(40)
-x - 6 = + sqrt(40) or - sqrt(40)
x = 6 + 2sqrt(10) or 6 - 2sqrt(10)
2006-10-03 09:12:15 · answer #3 · answered by عبد الله (ドラゴン) 5 · 0⤊ 1⤋
The link has a good explanation for completing the square.
2006-10-03 09:59:39 · answer #4 · answered by Kes 7 · 0⤊ 0⤋
(-(x+6)^2)+32
2006-10-03 09:13:30 · answer #5 · answered by ? 5 · 0⤊ 1⤋