# Math Help - squared

1. ## squared

if c=3 what is 2c squared i need to know the workings out please i think it is 3 squared which is 9 times 2 which is 18 but im not sure if any 1 can help i will be happy thanks

2. Originally Posted by andyboy179
if c=3 what is 2c squared i need to know the workings out please i think it is 3 squared which is 9 times 2 which is 18 but im not sure if any 1 can help i will be happy thanks
Hi andyboy179,

You want to know $2c^2=2\cdot 3^2=2 \cdot 9 = 18$

And there it is!