samuellowe1998 samuellowe1998
  • 17-02-2017
  • Mathematics
contestada

What is the solution set of 2x 2 + x = 15?
{3, -5/2}
{-3, 5/2}
{2, -3/2}

Respuesta :

Аноним Аноним
  • 17-02-2017
2x 2 + x = 15
2x 2 + x -15 = 0
(2x - 5)(x+3) = 0

2x-5=0
x = 5/2

x+3=0
x=-3

answer {-3, 5/2}
(second choice)
Answer Link
jam15victory
jam15victory jam15victory
  • 09-04-2021

Answer:

{-3, 5/2}

Hence the Second Option

Answer Link

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