Answer:
Step-by-step explanation:
Factor the sum of cubes
a³ + b³ = (a+b)(a² - ab +b²)
= 2a² - 2ab + 2b²
a³ + b³ + 6ab = 2a² + 4ab + 2b²
= 2(a² + 2ab +b²)
= 2(a+b)²
= 8
Answer:
I'm pretty sure it is the second one
Step-by-step explanation:
Answer:
Step-by-step explanation:
28
Answer:
it is the square root of 145
Step-by-step explanation:
use distance formula