(12x^5-3x^4+2x-5)+(8x^4-3x^3+4x+1)

2 min read Jun 16, 2024
(12x^5-3x^4+2x-5)+(8x^4-3x^3+4x+1)

Adding Polynomials: A Step-by-Step Guide

In this article, we'll explore how to add two polynomials: (12x⁵ - 3x⁴ + 2x - 5) + (8x⁴ - 3x³ + 4x + 1). Let's break down the process step by step.

Understanding Polynomials

Polynomials are expressions that consist of variables and constants combined using addition, subtraction, multiplication, and non-negative integer exponents. Each term in a polynomial is a product of a coefficient (a constant) and a variable raised to a power.

Adding Polynomials

To add polynomials, we simply combine like terms. Like terms have the same variable raised to the same power.

Step 1: Identify Like Terms

  • x⁵ terms: 12x⁵
  • x⁴ terms: -3x⁴ and 8x⁴
  • x³ terms: -3x³
  • x terms: 2x and 4x
  • Constant terms: -5 and 1

Step 2: Combine Like Terms

Add the coefficients of each set of like terms:

  • 12x⁵
  • (-3x⁴ + 8x⁴) = 5x⁴
  • -3x³
  • (2x + 4x) = 6x
  • (-5 + 1) = -4

Step 3: Write the Sum

Combine the simplified terms to get the final result:

(12x⁵ - 3x⁴ + 2x - 5) + (8x⁴ - 3x³ + 4x + 1) = 12x⁵ + 5x⁴ - 3x³ + 6x - 4

Conclusion

Adding polynomials involves identifying like terms, combining their coefficients, and writing the sum in standard form. This process allows us to simplify expressions and perform operations on polynomials effectively.