Question 1076467
y^2 -19y + 7 = 0
:
complete the square
:
y^2 -19y +(361/4) = -(28/4) +(361/4)
:
(y -19/2)^2 = 333/4
:
y = (19/2) +(square root(333)/2) = (37.2463/2) = 18.6231
:
y = (19/2) -(square root(333)/2) = (.7537/2) = .3768
:
let r = 18.6231 and s = .3768
:
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(r-2)(s-2) = (18.6231-2)(.3768-2) = −26.9826
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