Ответ:
x^2 + 4x - 21 - (x^2 - 81) = 24
x^2 + 4x - 21 - x^2 + 81 - 24 = 0
4x + 36 = 0
4x = - 36
x = - 36/4
x = - 9
Пошаговое объяснение:
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
x^2 + 4x - 21 - (x^2 - 81) = 24
x^2 + 4x - 21 - x^2 + 81 - 24 = 0
4x + 36 = 0
4x = - 36
x = - 36/4
x = - 9
Пошаговое объяснение: