(2k² + 5k - 6)(3k - 1)
(6k³ - 2k² + 15k² - 5k - 18k + 6)
6k² + 13k² - 23k + 6
Use the FOIL method to simplify the problem.
(FOIL stands for first outer, inner, last)
Since she is increasing by 2 pairs every month, the rate of change is 2 so the slope is 2
A) 2x + 3y = 2. (1)
x - 2y = 8. (2)
modify (1) to be: 2x = 2-3y
= x = 1-1.5y
put (1) into (2) so: (1-1.5y)-2y = 8
-3.5 y = 7
3.5 y = -7
y = -7/3.5
y=-2