(Photo attached) Is Tamara's work correct? If not, what is the first step where Tamara made a mistake?
1 answer:
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Step-by-step explanation:
The function is as follows :
We need to find the zeroes of the function in the simplest radical form.The zero of the above function is given by :
Here,
b = 5
a = 1
c = 5
So,
Hence, the correct option is (c).
For this case we have the following system of equations:
We multiply the first equation by -5:
Thus, we have the equivalent system:
We add the equations:
We find the value of the variable "x":
Thus, the solution of the system is:
Answer: