Help

[placid otter]

Need help on b, not sure how to rearrange to make y the subject

[ocean rune]

Let hg(x)^-1=y

[granite pilot]

=x sorry not y

Replace all y’s with x

Make x the subject of the formula

[placid otter]

ypu did that

i did that already

[granite pilot]

Opposite of cube root is cubing

Cube both sides

Then deal with the fraction

Opposite of division is multiplication

You get where im going with this

[placid otter]

yup

[granite pilot]

Alright cool

[placid otter]

i did it and got hg-1(x) = (1-5x^3)/2x^3

but i put it in an equation solver

and apparently its wrong

so idk

[granite pilot]

Ill do it later and try it out, cant rn bc im out

[placid otter]

okay thanks for your help

[granite pilot]

Yw

[elder granite]

should be 2 / x^3 + 5

[frosty flume]

2 / x³ + 5

Yep that's the answer

[elder granite]

id find g^-1(x) first

then put that into h(x)

its not (hg(x))^-1