Ответ:
(3x - 8)² + (4x - 8)(4x +8) + 100x = 9x² - 48x + 64 + 16x² - 64 + 100x = 25x² + 52x при x = -2
25 × (-2)² + 52 × (-2) = 25 × 4 + (-104) = 100 + (-104) = -4
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Ответ:
(3x - 8)² + (4x - 8)(4x +8) + 100x = 9x² - 48x + 64 + 16x² - 64 + 100x = 25x² + 52x при x = -2
25 × (-2)² + 52 × (-2) = 25 × 4 + (-104) = 100 + (-104) = -4