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Aliun [14]
4 years ago
12

Add or Subtract polynomial expressions

Mathematics
1 answer:
Olegator [25]4 years ago
8 0

Answer:

x³ + x² + 4x + - 4

Step-by-step explanation:

Remove the parentheses and simplify.  Expand the negative sign for the second phrase in parentheses.

-x³ + 2x² - x + 2 + 2x³ + 5x - 1 - x² - 5

x³ + x² + 4x + - 4

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3 years ago
1. Rút gọn biểu thức A(x) = (x+2)(x+3)(x+5) - (x-1)(x+4)(x+7). Từ đó tìm tất cả các giá trị x sao cho A(x) = 0.
zepelin [54]

x = -29/7

Step-by-step explanation:

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3 years ago
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