(3x + 2y) (3x - 5y) =9x²+___xy+___y²
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Step-by-step explanation:
→ (3x + 2y)(3x-5y)
→ 3x × 3x - 3x × 5y + 2y × 3x - 2y × 5y
→ 9x² - 15xy + 6xy - 10y²
→ 9x² - 9xy - 10y²
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