F(x)=3x−4g(x)=−x2+2x−5h(x)=2x2+1j(x )=6x2−8xk(x)=3x2−x+7 Calculate (fh)(x).

( f h ) (x)  = 6 x² - 1

Step-by-step explanation:

Step(i):-

Given f(x)   =  3 x - 4

         g (x)  = −x²+2 x−5

        h (x)  = 2 x² + 1

         j (x)    = 6 x + 2 - 8 x

        K (x)   = 3 x² - x + 7

Step(ii):-

( f h ) (x) = f ( h (x)) = f ( 2 x² + 1 )

                            =  3 (2 x² + 1 ) - 4

                            =  3 ((2 x² ) + 3 - 4

                           =   6 x² - 1

Final -

∴ ( f h ) (x)  = 6 x² - 1

x= 149. 24+7=31. 180-31=149

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