from sum of x2 +x+1 and x2- x+1 subtract -1/2X2 - 2/3x +1 with explanation
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Step-by-step explanation:
+1+x
2
−x+1)−(−x−x+1)
=2x
2
+2−(−2x+1)
=2x
2
+2+2x−1
=2x
2
+2x+1
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