Question

Решите уравнение: 14 - (2 +3x - x^2) = x^2 + 4x - 8

Answer 1

14 - ( 2 + 3x - x² ) = x² + 4x - 8
14 - 2 - 3x + x² = x² + 4x - 8
12 - 3x = 4x - 8
7x = 20
x = 20/7
x = 2 6/7

Answer 2

To solve the equation, let's first simplify it by combining like terms:

14 - (2 + 3x - x^2) = x^2 + 4x - 8

Start by removing the parentheses by distributing the negative sign:

14 - 2 - 3x + x^2 = x^2 + 4x - 8

Next, rearrange the equation to bring like terms together:

x^2 - x^2 - 3x - 4x = 14 - 2 + 8

Combine the x^2 terms on the left side:

-4x = 20

Now, isolate x by dividing both sides by -4:

x = 20 / -4

x = -5

So the solution to the equation is x = -5.