Recognize Cubic Expression: Recognize the expression 1−8x3 as a difference of cubes.A difference of cubes can be factored using the formula a3−b3=(a−b)(a2+ab+b2).Here, 1 can be written as 13 and 8x3 can be written as (2x)3.
Apply Difference of Cubes Formula: Apply the difference of cubes formula.Let a=1 and b=2x.The factored form will be (1−2x)(12+1⋅2x+(2x)2).
Simplify Factored Form: Simplify the factored form.Simplify the second term (12+1⋅2x+(2x)2) to (1+2x+4x2).The fully factored form is (1−2x)(1+2x+4x2).