A technical designer is working with a fabrication formula that involves a four-term polynomial. When three of those terms form a perfect square trinomial, the designer must use a specific grouping strategy to simplify the expression. Arrange the following procedural steps in the correct order to factor the formula completely.

A structural designer is simplifying a material stress formula: $x^2 + 12x + 36 - y^2$. To factor this expression completely using the 'grouping three terms' method, match each component of the factoring process to the correct algebraic pattern it represents.

An aerospace engineer is simplifying a structural load formula represented by the polynomial $a^2 - 12a + 36 - b^2$. To successfully factor this expression using the 'grouping three terms' strategy, the engineer must first recognize that the terms $a^2 - 12a + 36$ form which specific algebraic pattern?

A facility manager is calculating the area of a newly renovated office space using the polynomial $x^2 + 14x + 49 - y^2$. True or False: In the process of factoring this four-term expression by grouping three terms, the final step requires applying the 'difference of squares' pattern.

A manufacturing technician is simplifying a four-term area formula, such as $x^2 + 10x + 25 - y^2$, to determine the dimensions of a new assembly workspace. To apply the advanced grouping strategy to this polynomial, the technician must first recognize that three of the terms (in this case, $x^2 + 10x + 25$) specifically form a ____.