For the gieen tundions t and g conpkete parts (a-) For parts (a)-(d), also tird
ID: 3018149 • Letter: F
Question
Explanation / Answer
(c)
(f.g)(x) =f(x) *g(x)
(f.g)(x) =(4x+5)(8x-3)
(f.g)(x) =32x2+28x -15
domain is {x| x is any real number}
(d)
(f/g)(x) =f(x) /g(x)
(f/g)(x) =(4x+5)/(8x-3)
8x-30
=>x3/8
domain is {x| x (-,3/8)U(3/8,)}
domain is {x| x is any real number -{3/8}}
(e)
(f+g)(4)
=f(4) +g(4)
=((4*4)+5)+((8*4)-3)
=(16+5)+(32-3)
=21 +29
=50
(f)
(f-g)(2)
=f(2) -g(2)
=((4*2)+5)-((8*2)-3)
=(8+5)-(16-3)
=13-13
=0
(g)
(f.g)(3) =(32*32)+(28*3) -15
(f.g)(3) =357
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