## College Algebra 7th Edition

$(2x-5)(2x+5)$
RECALL: $A^2-B^2=(A-B)(A+B)$ The given binomial can be written as: $=2^2x^2-5^2 \\=(2x)^2-5^2$ Factor the binomial using the formula above with $A=2x$ and $B=5$ to obtain: $=(2x-5)(2x+5)$