I think you mean x^2 - 7x + 8
This is a basic factoring problem:
What two numbers multiply to make 8 and add to make -7?
There are no two numbers that work!
Therefore, it is prime
Step-by-step explanation:
here's the solution: -
=》

=》

=》

=》

Answer:
-13
Step-by-step explanation:
2
(-3)
-1
(-3)
-4
(-3)
-7
(-3)
-10
(-3)
?
?=-13
Answer:
0.03125
Step-by-step explanation:
If we have a fair coin the probability of landing a head is 50%.
We can think the question as what is the probability of landing four tails and then a head. That is we needed at least 5 tries to get a head.

Since this events are independent we can write it as
