factorise 2x^3-3x^2-17x+20
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find the factors of the last constant no. and try putting them in place of x
when the answer will come 0
then put that in x=that no. and make a factor
and then divide the polynomial with that factor and then again factorise the quotient and these 2 factors and the previous 1 factor are the 3 required factors
when the answer will come 0
then put that in x=that no. and make a factor
and then divide the polynomial with that factor and then again factorise the quotient and these 2 factors and the previous 1 factor are the 3 required factors
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