Предмет: Математика, автор: 18Polino4ka18

Помогите выполнить 2 задания плиз

1. Найди значение выражения (степени)
(4²+3²)×5-5³
2. Решите уравнение
21x+13x-17x=187

Ответы

Автор ответа: k3rapi
1

1) (4^2 + 3^2) * 5 - 5^3 = (16 + 9) * 5 - 125 = 125 - 125 = 0

2) 21x + 13x - 17x = 187

17x = 187

x = 11


18Polino4ka18: Спасибо
Автор ответа: MyahkayaPodushka
0

Ответ:

1.

...= (16+9) • 5 - 125 = 25•5-125=125-125=0

2.

...

17х = 187

х = 187 : 17

х = 11

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