Question

solve the the above question..
plz fast......​

Answer 1

Answer:

9

Step-by-step explanation:

 10x²  + 15x + 63/5x² - 25x + 12  = 2x +3/x -5

=> (10x²+15x+63)(x - 5) = (5x²-25x+12)(2x + 3)  

=> 10x³ - 50x² + 15x² -75x + 63x - 315

= 10x³ + 15x² -50x² -75x + 24x + 36

=>  63x - 315 = 24x + 36

=> 39x = 351

=> 13x = 117

=> x = 9