I need to know it's step by step explanation and it's answer is 2y2+6-9y
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Step-by-step explanation:
this cannot be solved by factorisation
We have to use quadratic formula
y=b^2±4ac/2a
D=b^2-4ac
=81-48
=33
D'=b^2+4ac
=81+48
=129
y=33/4 or 129/4
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