Math, asked by ritesh9085650016, 1 year ago

-3x²+5x +12=0 solve using formula method

Answers

Answered by Toukirx
1

Answer:

Wrong equation

Step-by-step explanation:

-3x²+5x+12=0

=> 3x²-5x-12=0

=> x = -(-5)±√(-5)²-4×3×-12/2×3

= 5±√25-432/6

= Undefined

[This equation is wrong.It can't be solved]

Answered by Anonymous
3

Answer:

Step-by-step explanation:

D = \sqrt{ b^{2} - 4 ac }

   D^{2}   = 5^{2} - (4 x -3 x 12)

   D^{2}   =25 - (-144)

   D^{2}  = 25 + 144

   D^{2}  = 169

    D =\sqrt169}

    D = 13

x = -b ± D

        2a

x = -5 ± 13

      2 x -3

x = -5 ± 13

        -6

------- x = -5 - 13                                    -------- x = -5 + 13

                 -6                                                             -6      

         x = -18                                                    x = 8

                 -6                                                          -6      

         x = 3                                                        x =  -4

                                                                                 3

Therein there are two possible solutions for the equation, 3 or -4/3

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