CLASS 9TH POLYNOMIALS
Question : Factorise the following –
1. y³+6y²+11y+6
Answer:
y3−6y2+11y−6=0
y3−3y2−3y2+9y+2y−6=0
(y2−3y+2)(y−3)=0
(y−1)(y−2)(y−3)=0
∴y=1,2,3
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Answer:
y3−6y2+11y−6=0
y3−3y2−3y2+9y+2y−6=0
(y2−3y+2)(y−3)=0
(y−1)(y−2)(y−3)=0
∴y=1,2,3