Question

(5a-2b)²+(2a+5b)²-29b² - yпростить.

Answer 1

Теперь должно быть правильно

Объяснение:

25а+4b+4a+25b+841b=29a+870b

Answer 2

To simplify the given expression (5a-2b)² + (2a+5b)² - 29b², we can expand the squares and then combine like terms. Let's go through the steps:

(5a-2b)² + (2a+5b)² - 29b²

Expanding the squares:

= (5a-2b)(5a-2b) + (2a+5b)(2a+5b) - 29b²

Using the FOIL method to multiply the binomials:

= (25a² - 20ab + 4b²) + (4a² + 20ab + 25b²) - 29b²

Combining like terms:

= 25a² - 20ab + 4b² + 4a² + 20ab + 25b² - 29b²

The terms -20ab and 20ab cancel each other out, leaving:

= 25a² + 4a² + 4b² + 25b² - 29b²

Combining like terms again:

= 29a² + 0a² - 29b² + 29b²

Simplifying further, the 0a² term can be dropped:

= 29a² + 0 - 0

Finally, we are left with the simplified expression:

= 29a²