Factorise 1-y-12y² completely. PLSSSSS HELPPPPP.
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-12y^2-y+1
=P=-12,S=-1
-12y^2-4y+3y+1
-4y(3y+1)+1(3y+1)
(-4y+1)(3y+1)=0
y=1/4,-1/3
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