Question

factor 10K^2+105KM+270m^2

Answer 1

factor out a 5

--> 5(2K^2 +21KM + 54M^2)
2*54 = 108
12*9 = 108 and 12+9 = 21

--> 5(2K^2 +12KM +9KM +54M^2)
-->5(2K(K+6M)+9M(K+6M))
--> 5(2K+9M)(K+6M)

Answer 2

Thanks