Question

X(x+1)-(x+2)(x+3)+9=x(x+4)-(x+5)(x+2)

Answer 1

Держи, и не благодари :)

Answer 2

Let's simplify the left-hand side of the equation first:

X(x+1)-(x+2)(x+3)+9 = x^2 + x - (x^2 + 5x + 6) + 9 // multiplying out the brackets = x^2 + x - x^2 - 5x - 6 + 9 // grouping like terms = -4x + 3

Now let's simplify the right-hand side of the equation:

x(x+4)-(x+5)(x+2) = x^2 + 4x - (x^2 + 7x + 10) // multiplying out the brackets = x^2 + 4x - x^2 - 7x - 10 // grouping like terms = -3x - 10

So the equation becomes:

-4x + 3 = -3x - 10

Adding 4x to both sides, we get:

3 = x - 10

Adding 10 to both sides, we get:

x = 13

Therefore, the solution to the equation is x = 13.