Identify quadratic trinomial and coefficients: Identify the quadratic trinomial and its coefficients.The given quadratic trinomial is −3x2+6x+9, where the coefficients are −3 for x2, 6 for x, and 9 as the constant term.
Factor out greatest common factor: Factor out the greatest common factor (GCF) from the trinomial.The GCF of −3x2, 6x, and 9 is 3. However, since the leading coefficient is negative, we will factor out −3 to keep the squared term positive in the resulting trinomial.Factoring out −3 gives us: −3(x2−2x−3).
Factor trinomial inside parentheses: Factor the trinomial inside the parentheses.We need to find two numbers that multiply to give −3 (the constant term) and add to give −2 (the coefficient of x).The numbers that satisfy these conditions are −3 and +1.Therefore, we can write the trinomial as: −3((x−3)(x+1)).
Write final factored form: Write the final factored form.The factored form of the quadratic expression is: −3(x−3)(x+1).