Question

Factorise the following
3. 10y^2 + 36y + 36 - y^2​

Answer 1

Answer:

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Answer 2

Answer:

(9y+18)(y+2)=0

Step-by-step explanation:

${10y}^{2} + 36y + 36 - {y}^{2} = 0 \\ {9y}^{2} + 36y + 36 = 0 \\ {9y}^{2} + 18y + 18y + 36 = 0 \\ 9y(y + 2) + 18(y + 2) = 0 \\ (9y + 18)(y + 2 ) = 0 \\ y = - 2$

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