Question

Resolva.
-3x² + 10x -3 = 0

Answer 1

-3x²+10x-3=0
/\ = 10²-4.(-3).(-3)
/\ = 100 - 36
/\ = 64
x = (-10+/-\/36)/2.(-3)
x = (-10+/-6)/(-6)
x' = (-10+6)/(-6)
x' = (-4)/(-6)
x' = 4/6 --> x' = 2/3

x" = (-10-6)/(-6)
x" = (-16)/(-6)
x" = 16/6 --> x" = 8/3

S: {(2/3; 8/3)}