Question

factorize 15xy+15+9y+25x

Answer 1

Split       15xy - 25x + 9y - 15 
             into two 2-term polynomials 
              - 25x + 15xy   and     + 9y - 15
             This partition did not result in a factorization. We'll try another one:

             15xy - 25x   and     + 9y - 15
             This partition looks good

 1.2       Pull out from each binomial separately
             15xy - 25x   =   5x • (3y - 5)
              + 9y - 15   =    + 3 • (3y - 5)

 1.3       Add up to arrive at the desired factorization
             (5x + 3) • (3y - 5)

Answer 2

Step-by-step explanation:

(15xy+9y)-(25x+15)

3y(5x+3)-5(5x+3)

(5x+3)(3y-5)

I hope this answer will help you.