Question

f(x)=(x+1}3 -(x-1)3 குறியீடும் சார்பானது​

Answer 1

$f(x) = (x + 1) {}^{3} - (x - 1) {}^{}$

$= {x}^{3} + 3 \times {}^{2} + 3 \times 1 - ( {x}^{3} - 3x {}^{2} + 3 \times - 1$

$6x {}^{2} + 2is \: a \: quadratic \: function \:$