Question

Diberikan dua buah fungsi f(x) = 2x-3 dan G(x) = 3x-4. tentukan :
a.) f(2) + g(3)
b.) g(4) - f(-5)
c.) f(-2n) - g(n)

Answer 1

A) f(2) + g(3)
= (2.2-3) + (3.3 - 4)
= (4-3) + (9-4)
= -1 + 5 = -4
b) g(4) - f(-5)
= (3.4 - 4) - (2.-5 - 3)
= (12-4) - (-10-3)
= 8 + 13 = 21
c) f(-2n) - g(n)
= (2.-2n - 3) - (3.n - 4)
= (-4n - 3) - (3n - 4)
= -4n - 3 - 3n + 4
= -7n + 1

Answer 2

A. f(2)+g(3) = (2.2-3)  +  (3.3-4)
                 =1+5 = 6

b. g(4)-f(-5) = (3.4-4) - (-5.2-3)
= 8 + 13 =21

c. f(-2n) -g(n) =( 2.-2n)-3-3n+4
= -4n-3-3n+4
=-7n+1