pls its urgent pls solve q 8 9 10
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8.xy2+(x-1)y-1=xy2+xy-y-1=xy(y-1)-1(y-1)=(y-1)(xy-1)
9.b2-ab(1-a)-a3=b2-ab+a2b-a3=b(b-a)+a2(b-a)=(b-a)(b+a2)
10. y2-y(2b+a)+2ab=y2-2by-ay+2ab=(y-2b)y-a(y-2b)=(y-2b)(1-a)
9.b2-ab(1-a)-a3=b2-ab+a2b-a3=b(b-a)+a2(b-a)=(b-a)(b+a2)
10. y2-y(2b+a)+2ab=y2-2by-ay+2ab=(y-2b)y-a(y-2b)=(y-2b)(1-a)
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