what is (z-5)^2 =6?

0 ⤊

(z-5)^2 = 6
solve for z
PLEASE :D

2007-05-30 16:48:04 · 3 answers · asked by Hally K 1 in Science & Mathematics ➔ Mathematics

(z-5)^2 = 6

z -5 = +/- sqrt (6)
z = 5 +/- sqrt(6)

2007-05-30 16:50:53 · answer #1 · answered by michael_scoffield 3 · 0⤊ 0⤋

zÂ² - 10z + 25 = 6
zÂ² - 10z + 19 = 0
z = [10 Â± â24] / 2
z = [10 Â± 2â6 ] / 2
z = 5 Â± â6

2007-05-31 02:58:10 · answer #2 · answered by Como 7 · 0⤊ 0⤋

(z-5)^2 = 6

z-5 = +/- (sqrt 6)

z = 5 + sqrt 6

.... and z = 5 - sqrt 6

2007-05-30 23:52:00 · answer #3 · answered by blueskies 7 · 0⤊ 0⤋