16-y2/4-y

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Solution for 16-y2/4-y equation: 


y in (-oo:+oo)

16-((y^2)/4)-y = 0

16-1/4*y^2-y = 0

DELTA = (-1)^2-(-1/4*4*16)

DELTA = 17

DELTA > 0

y = (17^(1/2)+1)/(-1/4*2) or y = (1-17^(1/2))/(-1/4*2)

y = -2*(17^(1/2)+1) or y = -2*(1-17^(1/2))

y in { -2*(17^(1/2)+1), -2*(1-17^(1/2)) }

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