Question

Factor 10c^2-60cd +80d^2

Answer 1

`10c^2-60cd +80d^2`


`(2c - 8d) (5c -10d)`


`this \\ is \\ because...`


`2c*5c=10c^2`


`2c * -10d=-20cd \\ -8d*5c=-40cd \\ -20cd-40cd=-60cd`


`-8d * -10d = 80d`