Question

X²-4x-5 x²+6x-7 x²-4x-5 упростить

Answer 1

Ответ:

-11x^2-2x-5

Объяснение:

Привести подобные члены :1)x^2-5x^2-7x^2=-11x^2;

2)-4x+6x-4x=-2x-5

x^2-4x-5x^2+6x-7x^2-4x-5=-11x^2-2x-5

Answer 2

To simplify the expression, "x²-4x-5 + x²+6x-7 + x²-4x-5," we can combine like terms:

Step 1: Combine the x² terms: x² + x² + x² = 3x²

Step 2: Combine the x terms: -4x + 6x - 4x = -2x

Step 3: Combine the constants: -5 - 7 - 5 = -17

Now, the simplified expression is: 3x² - 2x - 17