Question

find f inverse x if x equal to 4 x + 5​

Answer 1

Answer:

Step-by-step explanation: Answer

f(x)=4−(x−7)3

Let y=f(x)

So, x=f−1(y)            ---- ( 1 )

y=f(x)

⇒  y=4−(x−7)3

⇒ (x−7)3=4−y

⇒  x−7=34−y

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⇒  x=7+34−y

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⇒  f−1(y)=7+34−y

​  .................. [ From ( 1 ) ]

∴  f−1(x)=7+34−x

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