Question 876200
<pre>

5x(5x-6)-4y(y-3)  

25x²-30x-4y²+12y

25x²-4y²-30x+12y

(25x²-4y²)-6(5x-2y)

(5x-2y)(5x+2y)-6(5x-2y)

(5x-2y)[(5x+2y)-6]

(5x-2y)(5x+2y-6)

Edwin</pre>