Question 1007728
3x^2+x-4/10x^2+x-21 / x-1/10x+15
= 3x^2+x-4/10x^2+x-21 * 10x+15/x-1
= (3x+4)(x-1)/(5x-7)(2x+3) * 5(2x+3)/x-1
= 5(3x+4) / (5x-7)

Final Answer: 5(3x+4) / (5x-7)