9y²-12y+4

1.	9y²-12y+4
Answer» 9y² - 12y + 2 = 0(3y)² - 2(3y)(2) + 2² - 2² + 2 = 0(3y - 2)² - 4 + 2 = 0(3y - 2)² = 2(3y - 2) =\xa0√2taking (+ve)3y = √2 + 2y = (√2 + 2)/3taking (-ve)3y = -√2 + 2y = (2 - √2)/2

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