Answer:
Explanation:
Removing brackets.
Grouping like terms.
Combining like terms.
7x² - 3x + 7
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)
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