What must be added to 5x3 - 2x2 + 3x + 7 to get 7x3 + 7x-5?
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3
Answer:
Required expression
=7x
3
+7x−5−(5x
3
−2x
2
+3x+7)
=7x
3
+7x−5−5x
3
+2x
2
−3x−7
=2x
3
+2x
2
+4x−12
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