Can any please answer Factorise y²-6x+9
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Step-by-step explanation:
y²-6x+9=0
y²-(3+3)x+9=0
y²-3x+3x+9=0
1(y²-3x)+3(x+3)=0
(1-3x)(y²+3)=0
3x=-1,y²=-3
x=-1/3,y=√-3
=3
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