*(2x² + 5x - 3 ) - (x² + 5x + 6) = ?*
1️⃣ (x² + 9 )
2️⃣ (x² - 10x + 9 )
3️⃣ (x² - 9 )
4️⃣ (x² + 10x - 9 )
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Answer:
3️⃣ (x² - 9 )
Step-by-step explanation:
(2x² + 5x - 3 ) - (x² + 5x + 6)
= 2x² + 5x - 3 - x² - 5x - 6
= 2x² - x² + 5x - 5x - 3 - 6
= x² - 9 (Ans)
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