Let
be the number of hours worked at Job A and
the number of hours at Job B. Then

and

From the first equation,

and substituting this into the second gives



Answer:
The roots are
<h3>

</h3>
Step-by-step explanation:
9x² + 54x + 82 = 0
Using the quadratic formula
That's
<h3>

</h3>
From the question
a = 9 , b = 54 , c = 82
Substitute the values into the above formula and solve
That's
<h3>

</h3>
Separate the real and imaginary parts
That's
<h3>

</h3>
We have the final answer as
<h3>

</h3>
Hope this helps you
7/10-3/10=2/5
3/10+1/10=2/5