Question

11x2-7x-4=0 calculoo

Answer 1

11x^2-7x-4=0
a=11 /b=-7 /c=-4

(delta)=b^2-4.a.c
(delta)=(-7)^2-4.11.(-4)
(delta)=49+176
(delta)=225

7+-25
------------
22

16
x'= ------
11

-9
x"= ------
11

( 16 -9 )
S=( ------ , ------- )
( 11 11 )