factorise each expression using Algebraic identities 1. y square + 6y + 9
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Answer:
(y+3)(y+3)
Step-by-step explanation:
y^2+6y+9
y^2+(3+3)y+9
y^2+3y+3y+9
y(y+3)+3(y+3)
(y+3)(y+3). -Answer
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