Question
How can 13×19 be rewritten using the difference of two squares identity?(1 point)
1. (11-3)(11+3)
2. (16-3)(16+3)
3. (13-3)(19+3)
4. (10+3)(22-3)
1. (11-3)(11+3)
2. (16-3)(16+3)
3. (13-3)(19+3)
4. (10+3)(22-3)
Answers
GPT 3.5
The correct answer is (3).
The difference of two squares identity is given by the formula: a^2 - b^2 = (a + b)(a - b)
13 × 19 can be rewritten as (16 - 3)(16 + 3), where a = 16 and b = 3.
So, the correct expression using the difference of two squares identity is (13 - 3)(19 + 3).
The difference of two squares identity is given by the formula: a^2 - b^2 = (a + b)(a - b)
13 × 19 can be rewritten as (16 - 3)(16 + 3), where a = 16 and b = 3.
So, the correct expression using the difference of two squares identity is (13 - 3)(19 + 3).