Question

(-4a+2a+3)-(a^2-a+7)-(4a^2+2a+8)=

Answer 1

1) -4а+2а+3= -2а+3
2) -2а+3-а^2+а-7-4а^2-2а-8=-6а^2-3а-12
D= 8-288= -280< 0 => корней нет

Answer 2

1) -4а+2а+3= -2а+3

2) -2а+3-а^2+а-7-4а^2-2а-8=-6а^2-3а-12

D= 8-288= -280< 0 => корней нет

Answer 3

Let's simplify the expression step by step:

(-4a + 2a + 3) - (a^2 - a + 7) - (4a^2 + 2a + 8)

Step 1: Combine like terms within each set of parentheses: (-2a + 3) - (a^2 - a + 7) - (4a^2 + 2a + 8)

Step 2: Distribute the negative sign inside the second set of parentheses: -2a + 3 - a^2 + a - 7 - (4a^2 + 2a + 8)

Step 3: Combine like terms again: (-2a + a) + (3 - 7) - a^2 + (a^2) - (4a^2) + (2a - 2a) - 8

Step 4: Simplify further:

• a - 4a^2 - 8

Now, the expression is simplified to: -4a^2 - a - 8