f (×) = x-4, f (×) + (×) pangkat 2 -3 f (×)=...., ×=3 mohon bantuannya

Diketahui F(x) = x - 4 F(3) = 3 - 4 = -1 Soal F(x) + f(x)² - 3.f(x) = Jawaban F(x) + f(x)² - 3.f(x) = -1 + -1² - 3. -1 = -1 + 1 - (-3) = 0 +3 = 3

jawab

f(x)=  x - 4

f(3) = 3 - 4
f(3)  = -1

untuk x= 3,  nilai f(x)  +  f(x)^(2- 3.f(x))= ...

= f(3) + {f(3}^(2 - 3. f(3)) 
= -1 + (-1)^(2 - 3(-1))
= - 1 + (-1)^(2+3)
= -1 + (-1)^(5)
= - 1 - 1
= - 2