Simplifying the Expression (x^3+6x^2+5y^3)-(2x^3-5x+7y^3)
This expression involves combining like terms within two sets of parentheses with a subtraction sign in between. Let's break down the steps to simplify it:
Step 1: Distribute the Negative Sign
The minus sign before the second set of parentheses implies multiplication by -1. We distribute this to each term within the parentheses:
(x^3+6x^2+5y^3) -1 (2x^3-5x+7y^3) = x^3 + 6x^2 + 5y^3 - 2x^3 + 5x - 7y^3
Step 2: Combine Like Terms
Now we identify and group terms with the same variables and exponents:
- x^3 terms: x^3 - 2x^3
- x^2 terms: 6x^2
- x terms: 5x
- y^3 terms: 5y^3 - 7y^3
Step 3: Simplify
Finally, we combine the coefficients of the like terms:
- x^3 terms: -x^3
- x^2 terms: 6x^2
- x terms: 5x
- y^3 terms: -2y^3
Result
The simplified expression is: -x^3 + 6x^2 + 5x - 2y^3