Question

PLEASE ANSWER THIS QUESTION​

Answer 1

Answer:

a^2-b^2 = (a+b)(a-b)

6^2-5^2 =(6+5)(6-5)

= (11)(1)

=11

Answer 2

Answer:

1. 6² - 5² = 11
2. 6² - 5² = 11(3.1)² = 9.61

Step-by-step explanation:

1. 6² - 5²

using identity, a² - b² = (a+b)(a-b)

${6}^{2} - {5}^{2} = (6 + 5)(6 - 5) \\ = (11)(1) \\ = 11$

2. (3.1)²

using identity, (a+b)² = a² + 2ab + b²

${(3.1)}^{2} = {(3 + 0.1)}^{2} \\ {3.1}^{2} = {3}^{2} + 2(3)(0.1) + {(0.1)}^{2} \\ = 9 + 0.6 + 0.01 \\ = 9.61$