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KAROGASP
@KAROGASP
July 2022
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7-(х+2) в квадрате =11-х в квадрате
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Санечка69
Verified answer
7 - (x + 2)² = 11 - x²
7 - x² - 4x - 4 = 11 - x²
-x² - 4x + 3 = 11 - x²
-x² - 4x + 3 - 11 + x² = 0
-4x - 8 = 0
-4х = 8
х = -2
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Answers & Comments
Verified answer
7 - (x + 2)² = 11 - x²7 - x² - 4x - 4 = 11 - x²
-x² - 4x + 3 = 11 - x²
-x² - 4x + 3 - 11 + x² = 0
-4x - 8 = 0
-4х = 8
х = -2