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butyulia
@butyulia
August 2022
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решите уравнение
(x+2)^2=(x-8)^2
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zvitterion
Verified answer
(х+2)^2=(х-8)^2
раскладываем по формулам квадрата суммы и квадрата разности:
х^2+4х+4=х^2-16х+64
упрощаем:
4х+4=-16х+64
4х+16х=64-4
20х=60
х=60:20
х=3
ответ: 3
3 votes
Thanks 4
mn23
Verified answer
(x+2)^2 = (x-8)^2
x^2+4x+4 = x^2-16x+64
x^2-x^2+4x+16x+4-64 = 0
20x-60 = 0
20x = 60
x = 60:20
x = 3
Ответ: x = 3
3 votes
Thanks 3
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Answers & Comments
Verified answer
(х+2)^2=(х-8)^2раскладываем по формулам квадрата суммы и квадрата разности:
х^2+4х+4=х^2-16х+64
упрощаем:
4х+4=-16х+64
4х+16х=64-4
20х=60
х=60:20
х=3
ответ: 3
Verified answer
(x+2)^2 = (x-8)^2x^2+4x+4 = x^2-16x+64
x^2-x^2+4x+16x+4-64 = 0
20x-60 = 0
20x = 60
x = 60:20
x = 3
Ответ: x = 3