To simplify the expression 3a(a - 8) + 2(a² + 12a) - 5a² + 6, we need to distribute and combine like terms.
First, distribute 3a into (a - 8):3a² - 24a
Next, distribute 2 into (a² + 12a):2a² + 24a
Combine the terms:3a² - 24a + 2a² + 24a - 5a² + 6
Combine like terms:(3a² + 2a² - 5a²) + (-24a + 24a) + 60a² + 0 + 66
Therefore, the simplified expression is 6.
To simplify the expression 3a(a - 8) + 2(a² + 12a) - 5a² + 6, we need to distribute and combine like terms.
First, distribute 3a into (a - 8):
3a² - 24a
Next, distribute 2 into (a² + 12a):
2a² + 24a
Combine the terms:
3a² - 24a + 2a² + 24a - 5a² + 6
Combine like terms:
(3a² + 2a² - 5a²) + (-24a + 24a) + 6
0a² + 0 + 6
6
Therefore, the simplified expression is 6.