Answer:
+ 100
Step-by-step explanation:
Given
m² - 20m
To complete the square
add ( half the coefficient of the m- term )² to m² - 20m
m² + 2(- 10)m + (- 10)²
= m² - 20m + 100 = (m - 10)² ← perfect square
The 4th answer
7238.2
V = = 7238.2
6.2 is an integer
= 7238.2
