x^2+16x+63=0?

3 ⤊

Help to solve.
Thank you!!

2007-11-28 13:42:11 · 5 answers · asked by Michele 1 in Science & Mathematics ➔ Mathematics

(x + 7)(x + 9) = 0
x = - 7 , x = - 9

2007-11-28 22:23:16 · answer #1 · answered by Como 7 · 1⤊ 1⤋

what numbers * each other = 63 and add up to 16

factors of 63 =
63 1
23 3
9 7

7+9 = 16
therefore (X+7)(X+9)

(therefore X= -7 or X = -9)

2007-11-28 21:47:43 · answer #2 · answered by JJ 3 · 0⤊ 0⤋

(x + 7)(x + 9)

x = -7 and -9

2007-11-28 21:45:55 · answer #3 · answered by รզlεսռց ☆ 6 · 1⤊ 1⤋

(x+7)(x+9)=0

x=-7 or-9

2007-11-28 21:45:52 · answer #4 · answered by Dave aka Spider Monkey 7 · 1⤊ 1⤋

I dont know if I got this right but.......
X=1
and
x=-4
Try it

2007-11-28 21:48:30 · answer #5 · answered by Rice Man 1 · 0⤊ 0⤋