Identify GCF: Identify the greatest common factor (GCF) of the terms in the polynomial 4x4−48x3+128x2. The GCF is the largest polynomial that divides each term of the polynomial, which in this case is 4x2.
Factor out GCF: Factor out the GCF from each term of the polynomial.4x4−48x3+128x2=4x2(x2x4−x248x3+x2128x2)Simplify the terms inside the parentheses.4x2(x2−12x+32)
Simplify terms: Now, factor the quadratic expression inside the parentheses.We are looking for two numbers that multiply to 32 and add up to −12.The numbers that satisfy these conditions are −8 and −4.So, we can write the quadratic as (x−8)(x−4).
Factor quadratic: Write the completely factored form of the original polynomial by combining the GCF and the factored quadratic. 4x2(x−8)(x−4)This is the completely factored form of the polynomial.
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