andrea200227
andrea200227
12-04-2016
Mathematics
contestada
(x^2+1)(x-2)=x^3-2x^2+x-2
Solve for x
Respuesta :
mimokardahi
mimokardahi
12-04-2016
Step 1: Subtract x^3 from both sides.
x^3
−
2
x^2
+x
−2
−
x^3
=
x^3
−
2
x^2
+x
−2
−
x^3
−
2
x^2
+x
−2
=
−
2
x^2
+x
−2
Step 2: Add 2x^2 to both sides.
−
2
x^2
+x
−2
+
2
x^2
=
−
2
x^2
+x
−2
+
2
x^2
x−2
=
x−2
Step 3: Subtract x from both sides.
x−2
−x
=
x−2
−x
−2
=
−2
Step 4: Add 2 to both sides.
−2
+2
=
−2
+2
0=0
Answer:
All real numbers are solutions.
Answer Link
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