dy÷dx=(2x^2+3x-2y+3)÷2y^2-3y+2x-3
in cbse sample paper 2019 set 1 maths there is a typing error in question 6
it is written 23 x 5 =105
it should be 23 x 5 = 115
https://www.teachoo.com/8974/2862/Question-6/category/CBSE-Class-10-Sample-Paper-for-2019-Boards/20181103114532.pdf