Expanding the Expression: (n+2)(n^2+5n-3)
This article will guide you through the process of expanding the given expression: (n+2)(n^2+5n-3). This is a basic algebraic operation involving multiplication of two polynomials.
The Distributive Property
To expand this expression, we'll utilize the distributive property of multiplication. This property states that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products.
Expanding the Expression
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Distribute the first term (n):
- Multiply 'n' by each term inside the second set of parentheses:
- n * n^2 = n^3
- n * 5n = 5n^2
- n * -3 = -3n
- Multiply 'n' by each term inside the second set of parentheses:
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Distribute the second term (2):
- Multiply '2' by each term inside the second set of parentheses:
- 2 * n^2 = 2n^2
- 2 * 5n = 10n
- 2 * -3 = -6
- Multiply '2' by each term inside the second set of parentheses:
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Combine the results:
- Now we have: n^3 + 5n^2 - 3n + 2n^2 + 10n - 6
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Simplify by combining like terms:
- n^3 + (5n^2 + 2n^2) + (-3n + 10n) - 6
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Final expanded form:
- n^3 + 7n^2 + 7n - 6
Conclusion
Therefore, the expanded form of the expression (n+2)(n^2+5n-3) is n^3 + 7n^2 + 7n - 6. This process demonstrates how the distributive property can be applied to expand expressions involving polynomials.