SOLUTION: k^2 - 25 = 0 please help me solve useing the factor of 0 please show step by step i have k=5 but i do it off my head and dont know how to write it down in the long vers

Question 327048: k^2 - 25 = 0
please help me solve useing the factor of 0 please show step by step

i have k=5 but i do it off my head and dont know how to write it down in the long version
Answer by mananth(16949) (Show Source): You can put this solution on YOUR website!
k^2-25=0
this is of the form a^2-b^2= (a+b)(a-b)
(k+5)(k-5)=0
k= + / - 5