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Factor the polynomial $4x^2-16$ by it's greatest common factor (GCF): $4$
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$4\left(x^2-4\right)$
Learn how to solve factorization problems step by step online. Factor the expression 4x^2-16. Factor the polynomial 4x^2-16 by it's greatest common factor (GCF): 4. Simplify \sqrt{x^2} using the power of a power property: \left(a^m\right)^n=a^{m\cdot n}. In the expression, m equals 2 and n equals \frac{1}{2}. Calculate the power \sqrt{4}. Simplify \sqrt{x^2} using the power of a power property: \left(a^m\right)^n=a^{m\cdot n}. In the expression, m equals 2 and n equals \frac{1}{2}.