Answer:
k=2
Step-by-step explanation:

If we have two zeroes that are equal in size, but different signs then we have a different of squares,

So in order to do this we must make the middle term, x 0 so


Answer:
24. 7z^2(2z^3+1)
27. 7t (3t - 2)
30. 3a^2 (a^3-2a+4)
Step-by-step explanation:
You didnt specify what to do so i just assume this is a factorization question.
Denote by m for marinara and by a for alfredo and recall the following law:

Therefore

The correct answer is the last one.
Relative extrema occur where the derivative is zero (at least for your polynomial function).
So taking the derivative we get
<span>20<span>x3</span>−3<span>x2</span>+6=0
</span><span>
This is a 3rd degree equation, now if we are working with complex numbers this equation is guaranteed to have 3 solutions by the fundamental theorem of algebra. But the number of real roots are 1 which can be found out by using Descartes' rule of signs. So the maximum number of relative extrema are 1.</span>
Subtract four from both sides. That'll put both numbers without a variable on one side, and the number with the variable is by itself.