On the quadratic trinomial of X, the coefficients and constants of the quadratic trinomial are all 1, and the coefficients of the first term are the opposite of 4 / 3. Write out the quadratic trinomial

On the quadratic trinomial of X, the coefficients and constants of the quadratic trinomial are all 1, and the coefficients of the first term are the opposite of 4 / 3. Write out the quadratic trinomial

x^2-4/3x+1