Question

if f(x)=
$3x {}^{4} - 5x {}^{2} + 9$
,find(x-1)

Answer 1

Hey friend,
(x - 1)
Then,
x = 1
$f(x) = {3x}^{4} - {5x}^{2} + 9 \\ \\ = f(1) = 3( {1})^{4} - 5( {1})^{2} + 9 \\ \\ = 3 - 5 + 9 \\ \\ = 3 - 14 \\ \\ = 11$

Hope this helps!!!

@Mahak24

Thanks...
☺

Answer 2

Answer:

Step-by-step explanation:

Solution:-) This is a very easy question!

We have, f(x) = 3x-5x+9

Hence (x-1) ,

Then  x=1

f(x-1) = f(1) = 3(1) - 5(1) + 9

        = 3-5+9

        = 12-5

        = 7 .Ans.