Formula For Factoring Trinomials (when a =1)
It's always easaier to understand a new concept by looking at a
specific example so you might want to do that first. This formula works
when 'a' is 1. [ In other words, we will use this approach whenever the
coefficient in from of x2 is 1.
1) identify a,b, and c in the trinomial ax2 + bx+c
2) write down all factor pairs of c
3) identify which factor pair from the previous step sums up to b
4) Substitute factor pairs into two binomials
Answer:
5m
and
-8n
Step-by-step explanation:
7m - 2m = 5m
and
-5n - 3n = -8n
Have a great day
Answer:
C) 160
Step-by-step explanation:
Set up a proportion:
= 
Cross multiply and solve for x:
15x = 3600
x = 240
This means in 400 marbles, 240 are purple.
To find how many are not purple, subtract 240 from 400:
400 - 240
= 160 marbles
So, 160 marbles are not purple
Answer:
6 < x < 8 is decreasing
10 < x < 14 is neither
8 < x < 10 is increasing
4 < x < 6 is increasing
1 < x < 4 is decreasing
Step-by-step explanation:
just see where the line is going up or down
down is decreasing
up is increasing
Answer:
Next three terms are: - 13, - 17, - 21
Step-by-step explanation:
Evety time it decreases by 4.
