7.08*10^10
Hope this Helps :3
Thinking about the graph of f(x), the rate of change is zero whenever there is an extremum.
First, differentiate f(x)

Next, find the zeros of f'(x) by factoring.

Now, we substitute these x-values into the
original equation to find the coordinates.
(-2.667, 11.481), (0, 2)
Answer:

Step-by-step explanation:
Rearranging the terms, we get
. Dividing both sides by 7, we get
, so 
Answer:
I think number B
Step-by-step explanation:
I plugged it in the calculator. And then they both were zero.
Answer:
Step-by-step explanation:
If you let b = x^2 the problem becomes a whole lot easier. Note that x = √b
x^2 + x - 12
Now factor this trinomial.
(x + 4)(x - 3)
Now put b back into the equation
(√b + 4)(√b - 3)