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intheworldpasha
@intheworldpasha
June 2022
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Помогите, срочно
72/x-3 + 72/x+3=7
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годограф
Возможно все же условие выглядит так:
72/(x-3) + 72/(x +3)=7 ?
Тогда решение
72*(x+3) + 72*(x-3) = 7*( x^2 - 9)
144*x = 7*x^2 -63
7*x^2 - 144*x - 63 = 0
D = 144^2 + 7*4*63 =22500
x1= - 3/7
x2 = 21
2 votes
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Answers & Comments
72/(x-3) + 72/(x +3)=7 ?
Тогда решение
72*(x+3) + 72*(x-3) = 7*( x^2 - 9)
144*x = 7*x^2 -63
7*x^2 - 144*x - 63 = 0
D = 144^2 + 7*4*63 =22500
x1= - 3/7
x2 = 21