For binomials raised to exponent 2, the answer would follow the steps: 1. square the first term. 2. multiply by 2 the product of the two terms. 3. square the last term.
1. x² - 10 + 25
2. x² + 6x + 9
3. x² - 25
4. 16x² - 24xy + 9y²
5. 4x² + 20xy + 25y²
6. 4x² - 25y²