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Chemistry
Karsyn Leblanc
6 September, 12:10
Given f (x) = x - 7 and g (x) = x2
Find gif{4))
+1
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1
)
Keagan Barker
6 September, 16:06
0
9
Explanation:
let f (x) = x-7 be equation i
let g (x) = x^2 be equation ii
Substitute x-7 as x in equation 2
implies gf (x) = (x-7) ^2 = (x-7) (x-7)
substitute x=4 implies
gf (x) = (4-7) (4-7) = (-3) (-3) = 9
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