Question

-x²-x+12= me ajudem urgenteeeeee

Answer 1

- x² - x + 12 = 0 ( - 1 )

x² + x - 12 = 0

x = - 1 + - √1 + 48 / 2

x = - 1 + - √49 /2

x' = - 1 + 7 /2

x' = 3

x" = - 1 - 7 /2

x" = - 8 /2

x" = - 4

S = ( 3 ; - 4 )