Simplifying Expressions
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1) (8x² + 5x -3) + (12x² +7x -14)
2) (4x³+5x+13) + (-4x²+22)
3) (3x²-8x-2) - (11x²+5x+4)
4) (5y³+y²-3y-8) - (y²-8y+11)
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Expressions are simplified. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.
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1) (8x² + 5x -3) + (12x² +7x -14)
= (8x²+12x²) + (5x+7x)+(-3-14)
= 20x² + ...
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