Respuesta :

malikbushra551

Step-by-step explanation:

ax2 + bx + c = 0

x12 = (-b ± √D) / 2a , D = b2 - 4ac .

5x2 + 7x + 3 = 0

a = 5 , b = 7 , c = 3

D = 49 - 60 = - 11 , x1 = (-7 - i √11) / 10

x2 = (-7 + i √11) / 10

rosie2276

Step-by-step explanation:

to take out -(7/5)^2 out u have to multiply with 5 which is out of the bracket.

hope it's helps

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