Question 903807

(3x + 11)^2 - (5x-2)^2 

(3x+11-5x+2) combine like terms (-2x+13)
(3x+11+5x-2) combine like terms (8x+9)
(-2x+13)(8x+9)
I think you copied the problem incorrectly 
(-2x+13) not (-2x+3)