Answer: 
Step-by-step explanation:
We can first take out the common factor of 4, as both 4x² and -32 are divisible by 4.

From here, we can assume that x²-8 is a difference of two squares even though 8 is not a perfect square.
<em>For review, a difference of two squares </em>
can be factored into
.

Answer:
1
Step-by-step explanation:
the 2^x - 2^x cancels out
Answer:
2 solutions
Step-by-step explanation:
Since the equations are not equal, they provide two solutions. Negative numbers provide no solutions. If they are equal to zero, they have one solution.
Answer: 0.1334
Step-by-step explanation:
Given
There are seven trails with a probability of success is 

Using the binomial distribution, the Probability of exactly no success i.e. x=0 is given by

-4(x-7)=36
-4x+28=36
-4x=8
x=-2