Question

Please help
Use numerals instead of words. If necessary, use / for the fraction​

Answer 1

1

Explanation:

Factor and cancel common factors from numerator and denominator.

`\displaystyle(2y^3-y^2+2y-1)/(y^3-y^2+y-1)*(2y^2-3y+1)/(4y^2-4y+1)\\\\=((y^2+1)(2y-1)* (2y-1)(y-1)))/((y^2+1)(y-1)* (2y-1)^2)=((y^2+1)(2y-1)^2(y-1))/((y^2+1)(2y-1)^2(y-1))\\\\=1`