Question

2x²=7x equaçao de 2 grau,sem bhaskara? alguem???

Answer 1

2x² - 7x = 0

x ( 2x - 7 ) = 0

x' = 0

2x - 7 =0
2x = 7

 x" = 7/2  ou  3,5

Answer 2

2x² = 7x
2x² - 7x = 0
x (2x - 7) = 0

x = 0

2x - 7 = 0
2x = 7
x = 7/2

S = {0, 7/2}