Question

5x^3-11+9x^3-2x^2+7+x^2+9​

Answer 1

Answer:

• Answer:
• 9 {x}^{2} - 3x9x
• 2
• −3x
• Step-by-step explanation:
• We want to simplify
• (5 {x}^{2} + 2) - ( - 4 {x}^{2} + 7) + ( - 3x - 5)(5x
• 2
• +2)−(−4x
• 2
• +7)+(−3x−5)
• We expand the parenthesis to get;
• 5 {x}^{2} + 2 + 4 {x}^{2} - 7- 3x - 55x
• 2
• +2+4x
• 2
• −7−3x−5
• We group similar terms to get:
• 5 {x}^{2} + 4 {x}^{2}- 3x - 5 + 2 - 75x
• 2
• +4x
• 2
• −3x−5+2−7
• Combine the terms;
• 9 {x}^{2}- 3x + 09x
• 2
• −3x+0
• Therefore the simplified expression in standard form is:
• 9 {x}^{2} - 3x9x
• 2
• −3x

Step-by-step explanation:

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Answer 2

Answer:

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• Photosynthesis is the process by which plants and some microorganisms make substances like carbohydrates. It is an endothermic (takes in heat) chemical process that uses sunlight to turn carbon dioxide into sugars. The sugars are used by the cell as energy, and to build other kinds of molecules.

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