Zeroes:
We must solve

To do so, we define the auxiliary variable
. The equation becomes

The quadratic formula yields the solutions

Substituting back
gives

So, the zeroes are -6, -3, 3, 6.
Turning points:
Turning points are points where a function stops being increasing to become decreasing, or vice versa. Since functions are increasing when their first derivative is positive and decreasing when it's negative, turning points are points where the first derivative is zero.
We have

If we set the derivative to be zero, we have

So, the derivative is zero if x=0 or

Answer:
Please see attached picture for full solution.
Sorry, I'm not sure how to do Q7 :(
Answer:
5
Step-by-step explanation:
A=a+b/2 x h
4 = a
5 = b
8 = h
4 + 5 / 2 = 4.5
4.5 x 8 = 36
So the other base length is 5
Answer:10 question 1/2
Step-by-step explanation:
Answer:180 report cards
Step-by-step explanation:First, you have to find the ratio of the number of report cards Mrs. Jones folded to the number of report cards Ms. Albert folded and then find out How many did each
person fold?