(x+a)(x+b)(x+c) Formula

3 min read Jul 03, 2024
(x+a)(x+b)(x+c) Formula

The Formula for (x+a)(x+b)(x+c)

When working with algebraic expressions, it's essential to understand how to expand and simplify complex products. One such product is the formula for (x+a)(x+b)(x+c). In this article, we'll derive and discuss this important formula.

Derivation of the Formula

To derive the formula, let's start by expanding the product (x+a)(x+b)(x+c) step by step.

Step 1: Expand the first two factors

(x+a)(x+b) = x^2 + (a+b)x + ab

Step 2: Multiply the result by (x+c)

(x^2 + (a+b)x + ab)(x+c) = x^3 + (a+b+c)x^2 + (ab+ac+bc)x + abc

Thus, we have derived the formula for (x+a)(x+b)(x+c):

(x+a)(x+b)(x+c) = x^3 + (a+b+c)x^2 + (ab+ac+bc)x + abc

Interpretation and Applications

This formula has numerous applications in mathematics, physics, and engineering. Here are a few examples:

  • Cubic Polynomials: The formula allows us to express cubic polynomials in a compact form, making it easier to solve equations and inequalities.
  • Factorization: By recognizing patterns, we can factorize cubic expressions, leading to simpler algebraic expressions.
  • Geometry and Trigonometry: The formula appears in problems involving volumes of rectangular prisms, surface areas of solids, and trigonometric identities.

Conclusion

In conclusion, the formula for (x+a)(x+b)(x+c) is an essential tool in algebra and has far-reaching applications in various fields. By understanding and applying this formula, you'll become proficient in handling complex algebraic expressions and unlocking new insights in mathematics and beyond.

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