Question

3(а-1)2+5(а+1)-8а2+6а​

Answer 1

Ответ:

Объяснение:

$3(a-1)^2+5(a+1)-8a^2+6a=3(a^2-2a+1)+5a+5-8a^2=3a^2-6a+3+5a+5-8a^2=8-a-5a^2$

Answer 2

To simplify the expression 3(a-1)^2 + 5(a+1) - 8a^2 + 6a, follow these steps:

1. Expand the square: 3(a-1)^2 = 3(a-1)(a-1) = 3(a^2 - 2a + 1)

2. Distribute the constants: 3(a^2 - 2a + 1) + 5(a+1) - 8a^2 + 6a

3. Distribute the terms in the parentheses: 3a^2 - 6a + 3 + 5a + 5 - 8a^2 + 6a

4. Combine like terms: (3a^2 - 8a^2) + (-6a + 5a + 6a) + (3 + 5)

5. Continue simplifying: -5a^2 + 5a + 8

So, the simplified expression is -5a^2 + 5a + 8.