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July 2022
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Найдите корень уравнения.([tex](x+3) ^{2} =(x+8) ^{2} [/tex]
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belozerova1955
Раскроем скобки
х²+6х+9=х²+16х+64
х²-х²+6х-16х=64-9
-10х=55
х= - 5,5
Проверка:
(-5,5+3)²=(-5,5+8)²
(-2,5)²=(2,5)²
6,25 =6,25
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Answers & Comments
х²+6х+9=х²+16х+64
х²-х²+6х-16х=64-9
-10х=55
х= - 5,5
Проверка:
(-5,5+3)²=(-5,5+8)²
(-2,5)²=(2,5)²
6,25 =6,25