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

The square of a binomial sum is: $(A+B)^2=A^2+2AB+B^2$. Here: $(3x+5)^2=(3x)^2=2\cdot3x\cdot2+5^2=9x^2+30x+25$, thus because this is not equal to the left side of the equation, the statement is false.