solve using quadratic eq. formula 1/x-4 - 1/x-7 =11/30.
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Step-by-step explanation:
1/x-4 - 1/x-7 =11/30.
x-7 -x+4 = 11/30(x-4)(x-7) = -3
(x-4)(x-7) = - 90/11
x² - 11x + 28 + 90/11 = 0
x² - 11x + 398/11 = 0
x = ( 11 ±√1713/11) ÷ 2 = (11±12.48)÷2
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