Question

Diketahui f(x) = x - 2
g(x) = x2 - x - 2 . tentukan A.(f+g)(x) B.(f-g)(x) C.(f.g)(x) D.(f/g)(x).. mohon bantuannya.

Answer 1

F+g(x)=(x-2)+x²-x-2
=x-x-2-2+x²
=x²-4
f-g(x)=(x-2)-x²-x-2
=x+x-2+2-x²
=-x²+2x
c. f.g(x)= (x-2)(x²-x-2)
=x³-x²-2x-2x²+2x+4
=x³-3x²+4
d.(x-2)
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x²-x-2
= x-2
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(x-2)(x+1)
=x+1