Respuesta :

sqdancefan

−4x²−5(x+3)+x² = x²(-4+1) -5x -15 . . . . eliminate the parentheses, collect terms

... = -3x² -5x -15 . . . . . . matches your 2nd selection

dsdrajlin

Answer:

- 3 x² - 5 x - 15

Step-by-step explanation:

Let's consider the following expression.

- 4 x² - 5 (x + 3) + x²

First, we will apply the distributive property of multiplication over addition.

- 4 x² - 5 x - 15 + x²

Now, we order the terms according to their order.

- 4 x² + x² - 5 x - 15

Finally, we add elements of the same order.

- 3 x² - 5 x - 15

The simplified expression is - 3 x² - 5 x - 15.

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