Question

4 x square + 3 x + 5 is equal to zero solve it by the completing square method on their quadratic equation

Answer 1

Consider the equation

       4 x^2 + 3 x + 5 = 0

        x = - b + √b^2 - 4 ac / 2a

          = - 3 + √9 - 4(4)(5) / 2(4)

         = - 3 + √9 - 80 / 8

         = 3 + √71 / 8

         = 1.428