Identify the form: Identify the form of the quadratic trinomial. 6x2−30x+24 represents the form ax2+bx+c.
Look for GCF: Look for a greatest common factor (GCF) that can be factored out from all terms.The GCF of 6x2, −30x, and 24 is 6.
Factor out GCF: Factor out the GCF from the quadratic trinomial.6x2−30x+24=6(x2−5x+4)
Factor the trinomial: Now, factor the trinomial inside the parentheses.We need to find two numbers that multiply to 4 (the constant term) and add up to −5 (the coefficient of the middle term).The numbers that satisfy these conditions are −4 and −1.
Write factored form: Write the factored form of the trinomial inside the parentheses using the numbers found in the previous step. x2−5x+4=(x−4)(x−1)
Combine GCF with factored form: Combine the GCF factored out earlier with the factored form of the trinomial. 6(x2−5x+4)=6(x−4)(x−1)