What is the difference between (y²  4y + 9)  (3y²  6y  9) ?
(y²  4y + 9)  (3y²  6y  9)
= y²  4y + 9  3y² + 6y + 9 {removed parentheses, distributing negative sign through second set of parentheses} = 2y² + 2y + 18 {combined like terms} Ask the House
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