Answer:
-19
Step-by-step explanation:
It is a non repeating decimal
I am going to assume that x2 = x squared
So: X^2 + 3x -40
= (X+8)(X-5)=0
X+8 = 0
X= - 8
The other solution is X -5 = 0
X = 5
Therefore the solution set is {-8, 5}
6x - 7 = -49
6x = -49 + 7
6x = -42
x = -42/6
x = -7
Question-
A team math contest has $11$ teams of $6$ students each. Before the contest begins, every student high-fives every other student who is not on their team. How many high-fives take place in all?
Factors of 24: 1; 2; 3; 4; 6; 8; 12; 24
Factors of 40: 1; 2; 4; 5; 8; 10; 20; 40
Factors of 56: 1; 2; 4; 7; 8; 14; 28; 56
GCF(24; 40; 56) = 8
