# Chapter R - Algebra Reference - R.1 Polynomials - R.1 Exercises: 11

$(2-3x)(2+3x)=4-9x^{2}$

#### Work Step by Step

$(2-3x)(2+3x)$ Evaluate the binomial product using the FOIL (First, Outer, Inner, Last) method and simplify by combining like terms: $(2-3x)(2+3x)=4+6x-6x-9x^{2}=...$ $...=4-9x^{2}$

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