Question

x²-6x+2x-12=0
me ajuda galera hehe

Answer 1

X2 -6X+2X-12=0

X2 -4X-12=0

 

=b2-(4.a.c)

=(-4)2-(4.1.-12)

=16-(-48)

=16+48

=64

 

X’ = 6+8 / 2 = 7

X”=6-8 / 2 = -1