I'll transcribe my scribbles.
x * e^(2 + 6x^5) is a product. x is one factor, and the power of e is another factor.
We can use the Product Rule.
Let g(x) = e^(2 + 6x^5)
Then, we see that function f is:
f(x) = x * g(x)
f`(x) = x * g`(x) + (1) * g(x)
We need to calculate g`(x).
g(x) is a composite function. The power of e is the outer function, and the exponent contains the variable x, so the polynomial 6x^5 + 2 is the inner function.
Since the inner function changes the rate at which the power of e changes, we need to use the Chain Rule.
The power of e is itself a function of x
I see it as e^2 * e^(6x^5).
I mean, it is a function of the form g(n) = C * e^n where C is a constant (e^2) and n is the independent variable (6x^5).
g`(n) = C * e^n * ln(e)
Therefore, we have the following.
g(x) = e^2 * e^(6x^5)
g`(x) = e^2 * e^(6x^5) * ln(e) * 30x^4
or
g'(x) = 30x^4 * e^(2 + 6x^5) * ln(e)
Can you put this together, into the product rule in blue (above) ?