Add 2x²– 3x +1 to the sum of 3x² - 2x and 3x + 7.
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Answer:
5x^2-2x+8
Step-by-step explanation:
2x^2-3x+1+[3x^2-2x+(3x+7)]
->2x^2-3x+1+[3x^2-2x+3x+7]
->2x^2-3x+1+[3x^2+x+7]
->2x^2+3x^2-2x+x+1+7
->5x^2-2x+8
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