horizon1
May 30, 2008, 06:14 PM
I need help with some algebra. Is there such a thing as Checking Roots? For example:
Given- Determine whether 5 is a root of the equation 4x - 1 = 19.
The solution given is:
Solution: Replace x by 5.
4(5) - 1 = 19
20 -1 = 19
19 = 19
The values on each side of the equation are the same, so 5 is a root of the equation.
Is this true?
Given- Determine whether 5 is a root of the equation 4x - 1 = 19.
The solution given is:
Solution: Replace x by 5.
4(5) - 1 = 19
20 -1 = 19
19 = 19
The values on each side of the equation are the same, so 5 is a root of the equation.
Is this true?