(W-5/3)^2=49

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Solution for (W-5/3)^2=49 equation: 


W in (-oo:+oo)

(W-(5/3))^2 = 49 // - 49

(W-(5/3))^2-49 = 0

(W-5/3)^2-49 = 0

(W-5/3)^2-49 = 0

W^2-10/3*W-416/9 = 0

W^2-10/3*W-416/9 = 0

W^2-10/3*W-416/9 = 0

DELTA = (-10/3)^2-(-416/9*1*4)

DELTA = 196

DELTA > 0

W = (196^(1/2)+10/3)/(1*2) or W = (10/3-196^(1/2))/(1*2)

W = 26/3 or W = -16/3

(W+16/3)*(W-26/3) = 0

(W+16/3)*(W-26/3) = 0

( W+16/3 )

W+16/3 = 0 // - 16/3

W = -16/3

( W-26/3 )

W-26/3 = 0 // + 26/3

W = 26/3

W in { -16/3, 26/3 }

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