1.7(a+3)
2.5(x-1)
3.prime
4.3(5p-9)
5.3(15k-4)
6.8(3p+1)
7.47-5-2m+8m=42+6m=6(7+m)
8.2*10a-2*7b-10b-2a
20a-14b-10b-2a
18a-24b=6(3a-4b)
Answer: C
Exp:
∠DXC = 90°
∠CXB = 90°
supplementary = 180°
90+90= 180
Answer:
4x+7
Step-by-step explanation:
It would be half of the coefficient of x squared added to both sides:
So half of 8 ( the coefficient of 8x) is 4;
The number 4 squared is 16, so you would add that to both sides.
You do this so that you can easily factor the left side: x^2 + 8x + 16 = 4 + 16
(x + 4)(x+4) = 20
p=people
s=seats
r=rows
There are 32 rows with x amount of seats but only p amount of people can be in the auditorium due to fire laws.
32r=x>p
