'Constant' in terms of math

<p>What is a constant in terms of math?</p>

<p>a number or quantity that never changes.
For example :
5x + 10x - 2 = 20
5;10;-2 and constant.They never change .The value of x depends on the values of the constants.
ax^2 +bx + c = 0 where a,b,c are constants
Constants are always marked with the first letters of the alphabet - a,b,c,d,e,f,g,h,i ,often k,p,l,m or n</p>

<p>Thank you.</p>