Question

How do you factor `c^2+17cd+70d^2`?

Answer 1

`(c+10d)(c+7d)`

Explanation:

you can transform the trynomial in this way:

`c^2+17cd+70d^2=c^2+10cd+7cd+70d^2`

and factor in two steps:

`c(c+10d)+7d(c+10d)`

`(c+10d)(c+7d)`