Question

find the equation y=3x^2-x^3

Answer 1

$y = 3 {x}^{2} - {x}^{3} \\ by \: the \: trial \: method \: 1\\ y = 3( {1})^{2} - ( {1})^{3} \\ y = 3(1) - 1 \\ y = 3 - 1 \\ y = 2$