Answer:
(x - 9)(x + 8)
Step-by-step explanation:
Given
x² - x - 72
Consider the factors of the constant term (- 72) which sum to give the coefficient of the x- term (- 1)
the factors are - 9 and + 8, since
- 9 × 8 = - 72 and - 9 + 8 = - 1, thus
x² - x - 72 = (x - 9)(x + 8)
Eq. of line through (1,2) and (4,5) is
x-y+1=0
Answer:
A: (3,4)
B: (4,3)
C: (2,1)
Step-by-step explanation:
The first number in each coordinate is the x value, which is the number of units you go across starting from the origin
The second number in each coordinate is the y value, which is the number of units you go up starting from the origin
The answer is x=8 because 8 goes into 24 three times
