Respuesta :

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Answer:

7x² - 3x + 7

Step-by-step explanation:

Step 1: Write out expression

5x² + 3x + 4 + 2x² - 6x + 3

Step 2: Combine like terms (x²)

7x² + 3x + 4 - 6x + 3

Step 3: Combine like terms (x)

7x² - 3x + 4 + 3

Step 4: Combine like terms (constants)

7x² - 3x + 7

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Answer:

[tex]\Large \boxed{7x^2-3x+ 7}[/tex]

Step-by-step explanation:

[tex](5x^2 + 3x + 4) + (2x^2 -6x + 3)[/tex]

Removing brackets.

[tex]5x^2 + 3x + 4 + 2x^2 -6x + 3[/tex]

Grouping like terms.

[tex](5x^2 + 2x^2) + (3x -6x)+ (4 + 3)[/tex]

Combining like terms.

[tex](7x^2) + (-3x)+ (7)[/tex]

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