14-05-2020
Mathematics

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3x^2 - 4x + 9x - x^2

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wegnerkolmp2741o wegnerkolmp2741o

14-05-2020

Answer:

2x^2 +5x

Step-by-step explanation:

3x^2 - 4x + 9x - x^2

Combine like terms

3x^2 -x^2 -4x+9x

2x^2 +5x

Answer Link

14-05-2020

Answer:

Just combine like terms:

2x^2+5x

Answer Link

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