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4 years ago

2x3 + x2 + 7x - 6)-(- 2x + 10x + 10x+9)

Mathematics

1 answer:

AVprozaik [17]4 years ago

5 0

Answer:

2x³ + x² - 11x - 15

Step-by-step explanation:

Step 1: Write out expression

2x³ + x² + 7x - 6 - (-2x + 10x + 10x + 9)

Step 2: Distribute negative

2x³ + x² + 7x - 6 + 2x - 10x - 10x - 9

Step 3: Combine like terms (x)

2x³ + x² + 9x - 10x - 10x - 9 - 6

2x³ + x² - x - 10x - 9 - 6

2x³ + x² - 11x - 9 - 6

Step 4: Combine like terms (constants)

2x³ + x² - 11x - 15

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2x3 + x2 + 7x - 6)-(- 2x + 10x + 10x+9)​

2x3 + x2 + 7x - 6)-(- 2x + 10x + 10x+9)