Identify GCF of terms: Identify the greatest common factor (GCF) of the terms in the polynomial 4x3−56x2+180x. The GCF of 4x3, 56x2, and 180x is 4x, since 4x is the largest factor that divides evenly into all three terms.
Factor out GCF: Factor out the GCF from each term in the polynomial.4x3÷4x=x256x2÷4x=14x180x÷4x=45So, factoring out 4x gives us 4x(x2−14x+45).
Factor quadratic expression: Factor the quadratic expression x2−14x+45. We need to find two numbers that multiply to 45 and add up to −14. The numbers that satisfy these conditions are −9 and −5. So, x2−14x+45 can be factored as (x−9)(x−5).
Write fully factored form: Write the fully factored form of the original polynomial.Since we factored out 4x in Step 2 and factored the quadratic in Step 3, the fully factored form of the polynomial is 4x(x−9)(x−5).