Question

X²+2x-7x-14+x²-2x+4x-8(x²-x+2x-2)

Answer 1

Ответ:

Пошаговое объяснение:

х²+2х-7х-14+х²-2х+4х-8(х²-х+2х-2)=2х²+(2х-7х-2х+4х)-14-8(х²-х+2х-2)=2х²-3х-14-8х²+8х-16х+16=-6х²-11х+2

Answer 2

Let's simplify the expression step by step:

X² + 2x - 7x - 14 + x² - 2x + 4x - 8(x² - x + 2x - 2)

Step 1: Combine like terms within each pair of parentheses.

X² + 2x - 7x - 14 + x² - 2x + 4x - 8(x² - x + 2x - 2) = X² + 2x - 7x - 14 + x² - 2x + 4x - 8(x² + x - 2)

Step 2: Distribute the -8 across the parentheses.

X² + 2x - 7x - 14 + x² - 2x + 4x - 8(x² + x - 2) = X² + 2x - 7x - 14 + x² - 2x + 4x - 8x² - 8x + 16

Step 3: Combine like terms in the expression.

X² + 2x - 7x - 14 + x² - 2x + 4x - 8x² - 8x + 16 = (X² + x² - 8x²) + (2x - 7x - 2x + 4x - 8x) + (-14 + 16)

Step 4: Combine the like terms in each group.

(X² + x² - 8x²) + (2x - 7x - 2x + 4x - 8x) + (-14 + 16) = (X² - 7x²) + (-11x) + (2)

Step 5: Combine the remaining like terms.

(X² - 7x²) + (-11x) + (2) = X² - 7x² - 11x + 2

The simplified expression is: X² - 7x² - 11x + 2