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2007-10-26 10:43:28 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
x ² = 9
x = ± 3
2007-10-30 08:02:33 · answer #1 · answered by Como 7 · 0⤊ 0⤋
x = 3 or -3
2007-10-26 10:50:03 · answer #2 · answered by ♪♪ Serabi ♪♪ 5 · 0⤊ 0⤋
x=3 or -3
2007-10-26 10:46:48 · answer #3 · answered by ASHLEY :D 2 · 0⤊ 0⤋
x2-9=0
(x-3)(x+3)=0
Solve for each term gives:
x=-3 and x=3
2007-10-26 11:37:59 · answer #4 · answered by Alan W 1 · 0⤊ 0⤋
+/-3
2007-10-26 10:47:11 · answer #5 · answered by Simba 2 · 0⤊ 0⤋
x2 - 9 = 0
(x+3)(x-3)
2007-10-26 11:57:56 · answer #6 · answered by ♥♥felisha♥♥ 5 · 0⤊ 0⤋
x2-9=0
add 9 to both sides of the "="
becomes x2=9
divide both sides by 2
x=4.5
2007-10-26 10:48:32 · answer #7 · answered by danmar787 1 · 0⤊ 0⤋
x = 3 or -3
(x+3)(x-3) = 0
x+3 = 0 and x - 3 = 0
x = -3 and x = 3
2007-10-26 10:46:40 · answer #8 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
( x - 3) ( x + 3) = 0
or simply
x= 3 or -3
2007-10-26 10:46:49 · answer #9 · answered by mm 2 · 0⤊ 0⤋
x2=9
3x3=9
(-3)x(-3)=9
2007-10-26 10:58:30 · answer #10 · answered by Anonymous · 0⤊ 0⤋