Find the solutions to the equation
a. x=0,8
b. x=2,6
c. x=12,20
d. x=14,18
2007-03-16 05:03:48 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(x - 16)² = 4
(√x - 16)² = ± √4
x - 16 = ± 2
x - 16 = 16 ± 2
x = 16 ± 2
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2007-03-16 09:14:24 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
D, (-2)^2 = 4 and 2^2 = 4
2007-03-16 12:08:16 · answer #2 · answered by Jeremy S 2 · 0⤊ 0⤋
(x - 16)^2 = 4
Take the square root of both sides, keeping in mind that doing so will result in a "plus or minus" on the right hand side.
x - 16 = +/- 2
x = 16 +/- 2
Therefore,
x = {16 + 2, 16 - 2}
x = {18, 14}
2007-03-16 12:06:36 · answer #3 · answered by Puggy 7 · 1⤊ 0⤋
d is correct,
you should take this:
x-16=2 or -2
x-16=2 then x=18
x-16=-2 then x=14
2007-03-16 12:09:17 · answer #4 · answered by raheleh 2 · 0⤊ 0⤋
x - 16 = ± 2
x = 14, x = 18
ANSWER d
2007-03-16 12:25:53 · answer #5 · answered by Como 7 · 0⤊ 0⤋
d
2007-03-16 12:11:17 · answer #6 · answered by chris h 1 · 0⤊ 0⤋