f(x) = 78x + 20x² – 10¹
f(11) = ..?
___
Rules:
Pke cara!!
No ngasal!!
No copas!!
No kalku!!
Lengkap!
teliti!
BA menanti!
___
nt: pdhl udh nyaman di situ malah pindah hotel ;-;
Q.
f(x) = 78x + 20x² – 10¹
f(11) =
f(11) = 78(11) + 20(11²) – 10
f(11) = ( 78 × 11 ) + 20(11 × 11) – 10
f(11) = 858 + 20(121) – 10
f(11) = 858 + 2.421 – 10
f(11) = 3.278 – 10
f(11) = 3.268
PENYELESAIAN
f(x) = 78x + 20x² – 10¹
f(11) = 78(11) + 20(11)² – 10
f(11) = 858 + 20(121) – 10
f(11) = 858 + 2420 – 10
f(11) = 858 + 2410
f(11) = 3.268