Question

Help please !!:) For y =3x -2x^2 +5x^3 show how to find the value for y when x = 3

Answer 1

y = 3x-2x∧2+5x∧3

When we replace x with value 3 we get

y = 3 * 3 - 2 * 3∧2 + 5 * 3∧3 => y = 9-2*9+5*27 => y = 9-18+135 => y = 126

good luck!!!