12x + 4 {x}^(2) - {x}^(5) + 3 Put the expression un standard form and then tell me what the leasing coefficient is! * don't forget about imaginary 1's ''​

Question

`12x + 4 {x}^(2) - {x}^(5) + 3`

Put the expression un standard form and then tell me what the leasing coefficient is! * don't forget about imaginary 1's ''​

Answer 1

Expression in standard from: -x^5+ 4x^2+12x+3. ( ^= to the power of, I’m sorry I don’t know how to type that in my phone) and the leading coefficient would be -1