Question

ыберите верное равенство
1) –4(5x + 8y) – 3x(2y – 5) = –20x + 8y – 6xу + 5
2) –4(5x + 8y) – 3x(2y – 5) = –5x – 32y – 6xy
3) –4(5x + 8y) – 3x(2y – 5) = –35x + 32y – 6xy
4) –4(5x + 8y) – 3x(2y – 5) = –20x – 32y – 6xy +

Answer 1

Ответ:

2 - верное

$- 4(5x + 8y) - 3x(2y - 5) = \\ = - 20x - 32y - 6xy + 15x = \\ = - 5x - 32y - 6xy$