Answer:
–13
Step-by-step explanation:
h(x) = –x –4
h(x) = 9
–x –4 = 9
–x = 9 + 4
–x = 13
x = –13
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60
(x+y)
Thus, the HCF is (x+y).
Explanation is in the file
tinyurl.com/wpazsebu