In the second step while distributing she made a mistake
It should have been
2x^2 -4x -6x +18 = 9x - 27
So answer should be
She did not use the distributive property correctly
The bottom would be 36cm and the sides 6 and 8
So, the cubic polynomial function is 
No, none of the roots have multiplicity.
Step-by-step explanation:
We need to write an equation for the cubic polynomial function
whose graph has zeroes at 2, 3, and 5.
Zeros mean:
x=2, x=3 and x=5
or
x-2=0, x-3=0 and x-5=0
Multiplying all the factors:

So, the cubic polynomial function is 
No, none of the roots have multiplicity, A root has multiplicity if it appears more than 1 time. Like if (x-1)^2 is a root then 1 has multiplicity 2
Keywords: Polynomial Function
Learn more about Polynomial Function at:
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Hey there,
Your question states: <span>To rent a midsize car for one day, Speedy charges a flat rate of $41 plus an additional fee of $0.10 per mile driven. Use your function from the previous question, to predict the total cost of renting a car for one day, given that you plan to drive the car 200 miles.
.10/200
20+41= 61
61 would be your correct answer.
Hope this helps.
~Jurgen
</span>