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Sagot :
Answer:
C.
Step-by-step explanation:
substitute 3c for z, so that
z² = 3²c²
z = 3c
so h(3c) becomes 2·3²c² - 5·3c + 7 = 18c² -15c + 7
Answer:
Your answer is C
Step-by-step explanation:
Insted of h(z) you replace it with h(3c)
It would look like
2(3c)^2 - 5(3c) +7
Then you simply each term
So your answer is 18c^2-15c+7
Here is also a graph
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