Question

F(x) = 4x +5 dan g(x) = 3x+4 tentukan
a. (f+g) (x)
b. (f-g) (x)
c. (f.g) (x)​

Answer 1

A. (f+g)(x) = f(x) + g(x) = (4x+5) + (3x+4) = 7x+9
b. (f-g)(x) = f(x) - g(x) = (4x+5) - (3x+4) = x+1
c. (f.g)(x) = f(x) . g(x) = (4x+5) . (3x+4) = 12x² + 20

Answer 2

Jawab:

Penjelasan dengan langkah-langkah

f (x)=4x+5

g (x)=3x+4

a. (f+g)(x)=f (x)+g (x)

=4x+5+3x+4

=7x+9

b. (f-g)(x)=f (x)-g (x)

=4x+5-3x+4

=x+1

c. (f.g)(x)=f (x).g (x)

=(4x+5).(3x+4)

=12x^2+16x+15x+20

=12x^2+31x+20

maaf kalo salah