Answer:
2x² - 2x - 8y + 4
Explanation:
Assuming you mean
2x² + 3x - 4y + 7 - (5x + 4y + 3) ← distribute parenthesis by - 1
= 2x² + 3x - 4y + 7 - 5x - 4y - 3 ← collect like terms
= 2x² - 2x - 8y + 4
2 + 10
Steps:
1- Formulate
2- Simplify or expand
3- Multiply
4- Combine like terms
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