Keyboard not working properly

Please help me guys!

I have a Dell Inspiron 1525 laptop and I've been having this keyboard problem for 2 days when I type up letters that mix with numbers like this:
se3e3 w2hat my p0r4o9ble3m i8s? I*t's so9 anno9yi8ngf, p0le3ase3 he3lp0 me3 fi8gu7r4e3 o9u7t w2hat i8t i8sQ!:p0

It's only a 8 month old laptop. 
i have tired removing the battery and switching it back on
I really would appreciate anybody's advice on this:)