what must be added to 5 x³-2x²+ 6x +7 to make the sum x³ +3 x²-x+1
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Step-by-step explanation:
If ( - 4x^3 + 5x^2 - 7x - 6) is added to (5x^3 – 2x^2 + 6x + 7). The Sum will be equal to (x^3 + 3x^2 – x + 1).
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Answer:
Subtract them to get the answer
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