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klio [65]
3 years ago
12

Find the sum of 5x^3-3x^2+5 and -2x^3+6x^2-5

Mathematics
1 answer:
Rasek [7]3 years ago
5 0

(5x^3-3x^2+5)+(-2x^3+6x^2-5)\\\\=(5x^3-2x^3)+(-3x^2+6x^2)+(5-5)\\\\=\boxed{3x^3+3x^2}

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If a wheelchair-marathon racer moving at 13.1 miles per hour expends energy at a rate of 645 calories per hour, how much energy
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