Answer:The solutions are -3 and -6
Explanation:First we would need to put the equation in standard form which is:
ax² + bx + c = 0
This can be done as follows:
x² + 18 = -9x
x² + 9x + 18 = 0
By comparison, we would find that:
a = 1
b = 9
c = 18
Now, to get the roots, we would use the quadratic formula shown in the attached image.
By substitution, we would find that:
either x =

or x =

Hope this helps :)
What expression? I don't see any
Answer: the answer is A i took the testssssssssssssssssssssssssss
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Step-by-step explanation:
Answer: 864 square inches (choice A)
Work Shown:
area = length*width
area = 36*24
area = 864