Factorise the following 9y²-12+4
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As solved by AggarwalReena
Question is probably missing the variable “y”
9y^2-12y+4
Multiplying the outer terms
9*4 = 36
Factors are -6 and -6
9y^2-6y-6y+4
Factorise by grouping
3y(3y-2)-2(3y-2)
This is a perfect squared trinomial
Factors are ;
(3y-2) (3y-2)
Question is probably missing the variable “y”
9y^2-12y+4
Multiplying the outer terms
9*4 = 36
Factors are -6 and -6
9y^2-6y-6y+4
Factorise by grouping
3y(3y-2)-2(3y-2)
This is a perfect squared trinomial
Factors are ;
(3y-2) (3y-2)
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