9(x+y)(x+y) - (x)(x)
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9(x+y)(x+y) - (x)(x)
9x² + 9xy + 9yx + 9y² - x²
==>>
8x² + 18xy + 9y²
9x² + 9xy + 9yx + 9y² - x²
==>>
8x² + 18xy + 9y²
Veeshu:
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Answered by
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9(x+y)²-x²= 9x²+18xy+9y²-x² =8x²+18xy+9y²
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