tentukan rumus fungsi f(x) jika diketahui f(x) = (3x + 1)(x - 1) dan f(-1) = 6

f(x) = (3x + 1)(x - 1)

u/ f(-1) = 6
f(-1)= (3x + 1)(x - 1) = 6
f(-1)= (3(-1) + 1)((-1) - 1) =6
f(-1)= (-3 + 1)(-1 -1) =6
f(-1)= 3 + 3 -1 -1 =6
f(-1)= 6 - 2 =6
f(-1)= 4 =6
f(-1)= 6 - 4
f(-1)= 2

smoga brmanfaat.