danierx
danierx
15-03-2016
Mathematics
contestada
what are the values of x when x^2+x-6=-4
Respuesta :
Аноним
Аноним
15-03-2016
x2
+x
−6
=
−4
At first ubtract -4 from both sides.
x2
+x
−6
−
(
−4
)
=
−4
−
(
−4
)
x2
+x
−2
=0
the factor left side of equation.
(
x−1
)
(
x+2
)
=0
factors equal to 0.
x−1
=
0 or
x
+2
=0
x=
1 or
x
=
−2
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