Nilai polinomial f(x)=-5x³-2x²+3x-1 untuk x=1/2 adalah.....
![]()
Jawab:
f(x) = -5x³ - 2x² + 3x - 1
f(1/2) = -{5 x (1/2)³} - {2 x (1/2)²} + {3 x (1/2)} - 1
f(1/2) = -(5 x 1/8) - {2 x 1/4 ) + (3/2) - 1
f(1/2) = -5/8 - 1/2 + 3/2 - 1
f(1/2) = -5/8 - 4/8 + 12/8 - 1
f(1/2) = -5/8 - 4/8 + 12/8 - 8/8
f(1/2) = (-5 - 4 + 12 - 8) / 8
f(1/2) = -5/8
[answer.2.content]
