1) f(x) = 4x² - x³
f(2) = 4*4 - 8 = 8
f(-3) = 4*9 + 27 = 36 + 27 = 63
2) f(x) = 1/(3x²) + x⁴
f(√3) = 1/(3*3) + 9 = 1/9 + 9 = 82/9
f(-2) = 1/(3*4) + 16 = 1/12 + 16 = 193/12
3) f(x) = 3 + √x
f(9) = 3 + 3 = 6
f(81) = 3 + 9 = 12
4) f(x) = 3 - ³√x
f(27) = 3 - 3 = 0
f(-8) = 3 - (-2) = 5
1) f(x) = 4x² - x³
f(2) = 4*4 - 8 = 8
f(-3) = 4*9 + 27 = 36 + 27 = 63
2) f(x) = 1/(3x²) + x⁴
f(√3) = 1/(3*3) + 9 = 1/9 + 9 = 82/9
f(-2) = 1/(3*4) + 16 = 1/12 + 16 = 193/12
3) f(x) = 3 + √x
f(9) = 3 + 3 = 6
f(81) = 3 + 9 = 12
4) f(x) = 3 - ³√x
f(27) = 3 - 3 = 0
f(-8) = 3 - (-2) = 5