igorpanggabean
igorpanggabean
17-02-2017
Mathematics
contestada
X=-2 a solution to x^2 + x - 2 = 0
Respuesta :
undine66770
undine66770
17-02-2017
Not sure this is what you're looking for, but I tried.
Step 1: Factor left side of equation.
(
x−1
)
(
x+2
)
=0
Step 2: Set factors equal to 0.
x−1
=
0
or
x
+2
=0
x=
1
or
x
=
−2
Answer:
x=
1
or
x
=
−
2
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