Identify Form: Identify the form of the expression.The expression 1−36x2 is a difference of squares because it can be written as a2−b2, where a=1 and b=6x.
Write Expression: Write the expression as a difference of squares.1−36x2=(1)2−(6x)2
Apply Formula: Apply the difference of squares formula.The difference of squares formula is a2−b2=(a+b)(a−b). Here, a=1 and b=6x.So, 1−36x2=(1+6x)(1−6x)
Check Factored Form: Check the factored form by expanding.(1+6x)(1−6x)=1−6x+6x−36x2=1−36x2The expanded form matches the original expression, so there is no math error.