diketahui f(x)=4-3x dan g(x)=5-x² nilai dari g(f(1)) adalah

f(x) = 4-3x
g(x) = 5-x²
maka, g(f(x)) = 5-(4-3x)²
= 5- [(4-3x) (4-3x)]
= 5 - (16-12x-12x+9x²)
= 5 - (16-24x+9x²)
= 5-16+24x-9x²
= -9x²+24x-11

maka g(f(1)) = -9(1)²+24(1)-11
= -9+24-11 = 4

g(f(1)) = 5 - (4-3x) ^2
= 5 - 9x^2 - 24x + 16
= 5 - (1)^2 - 24(1) + 16
= 5 - 1 - 24 + 16
= -4