Question

Dadas las funciones f(x) - 6x + 5 y g(x) = 7 - 8x, encuentra:
(f+g) (x)
(f-g) (x)
(f g) (x)​

Answer 1

Explicación paso a paso:

f(x) = - 6x + 5 y

g(x) = 7 - 8x

Hallar:

(f+g) (x)  = f(x)+ g(x)

(f+g) (x)  = - 6x + 5+ 7 - 8x

(f+g) (x)  = -14x+12

( f – g )( x ) = f ( x ) – g ( x )

( f – g )( x )=(- 6x + 5)-(7 - 8x)

( f – g )( x )= -6x+5-7+8x

( f – g )( x )= 2x-3

( fg )( x ) = f ( x ) × g ( x )

( fg )( x ) = (- 6x + 5)(7 - 8x)

( fg )( x ) =  48x²-82x+35