## Intermediate Algebra for College Students (7th Edition)

$(5x+2y)^2$
Given:$25x^2+20xy+4y^2$ Equation can be written as: Since, $a^2+2ab+b^2=(a+b)^2$ or, $(5x)^2-2(5x)(2y)+(2y)^2$ Hence, $(5x+2y)^2$