(w^3-3w^2+12w+8)+(2w^3-18w+4)

2 min read Jun 16, 2024
(w^3-3w^2+12w+8)+(2w^3-18w+4)

Simplifying Polynomial Expressions: A Step-by-Step Guide

In algebra, we often encounter expressions involving variables and their powers. These expressions can be simplified by combining like terms. Let's explore how to simplify the expression:

(w^3 - 3w^2 + 12w + 8) + (2w^3 - 18w + 4)

Step 1: Identify Like Terms

  • Like terms have the same variable and exponent. For example, w^3 and 2w^3 are like terms, while w^3 and w^2 are not.

Let's identify the like terms in our expression:

  • w^3 terms: w^3 and 2w^3
  • w^2 terms: -3w^2 (there's no other w^2 term)
  • w terms: 12w and -18w
  • Constant terms: 8 and 4

Step 2: Combine Like Terms

Now we combine the coefficients of like terms:

  • w^3 terms: w^3 + 2w^3 = 3w^3
  • w^2 terms: -3w^2 (remains the same)
  • w terms: 12w - 18w = -6w
  • Constant terms: 8 + 4 = 12

Step 3: Write the Simplified Expression

Finally, we combine all the simplified terms:

**(w^3 - 3w^2 + 12w + 8) + (2w^3 - 18w + 4) = ** 3w^3 - 3w^2 - 6w + 12

Therefore, the simplified form of the given expression is 3w^3 - 3w^2 - 6w + 12.

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