Question

solve for x: x²-9/x+3=4/7​

Answer 1

Answer:

Given problem is :      ( x²  - 9) / (x + 3)  = 4 /7

Cross multiply the terms:

   7 x² - 7*9 = 4x + 4*3

   7 x² - 4 x - 75 = 0

                                    7 * 3 * 5 * 5  = 21 * 25  difference is 4

   7 x² - 25 x + 21 x - 75 = 0

   x (7x - 25) + 3 (7 x - 25) = 0

    (x + 3) (7 x - 25) = 0

   x = -3    or    x = 25/7

Answer 2

Answer:

x=25/7

step-by step explanation