Pls tells sol for remaining Q12,13

Dear student,12. (1-3y)(4-y)(2-3y)(1-y)=1(1-3y)(4-y)=(2-3y)(1-y)4-y-12y+3y2=2-2y-3y+3y22=12y+y-2y-3y2=8yy=28=14For remaining queries we request you to post them in separate threads to have rapid assistance from our experts.Regards

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