Question

factorise (3y-1)^2-6y+2

Answer 1

Answer:

$(3y - 1) {}^{2} - 6y + 2 \\ \\ by \: using \: formula(x - y) {}^{2} = x {}^{2} - 2xy + y {}^{2} \\ \\ 9y {}^{2} - 6y + 1 - 6y + 2 \\ \\ 9y {}^{2} - 12y + 3 \\ \\ 9y {}^{2} - 9y - 3y + 3 \\ \\ 9y(y - 1) - 3(y - 1) \\ \\ (9y - 3)(y - 1) \\ \\ y = \frac{1}{3} \\ y = 1$

Step-by-step explanation:

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