1.

*(k - 2/3)² = ?*1️⃣ (k²- 4k/3 - 4/9)2️⃣ (k² - 4/9)3️⃣ (k²- 4k/3 + 4/9)4️⃣ (k² + 4/9)​

Answer»

Answer:

4️⃣ (k² + 4/9)

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