Solve the following subquestion:
Factorise `1/x x^2 -3x +4`.

Solve the following questions : Factorise 3x^2 + 10x -8

Factorise : 44x^2-x-3

Factorise: 4x^2-25

Solve the following subquestion: Write the set B= {6, 6^2 , 6^3, 6^4} using rule method.

Factorise : 3x^2-4x+1

Solve the following subquestion: Multiply (x^5 -1) by (x^3 +2x^2 +2)

Solve the following subquestion: Write the union of the following sets A ={x|x in N and x is a divisor of 12} B= {y|y in N and y is a divisor of 19}