Question

solve this in quadratic formula 8x²-72=0​

Answer 1

Answer:

 8x² - 72 = 0​

8 ( x ² - 9 ) =0

    x²  - 9  = 0/8

     x²  - 9  = 0

         x²    = 9

        x      = √9

           x  = 3