## Finite Math and Applied Calculus (6th Edition)

$4x^{2} -9$
(2x-3)(2x+3) 1. Square the first term. $(2x)^{2} = 4x^{2}$ 2. Multiply the first term and second term together. $(-3)(3) = -9$ 3. Add your answers from steps 1-2 to get $4x^{2} -9$.