SOLUTION: X+1=radical 17-4x

Algebra ->  Radicals -> SOLUTION: X+1=radical 17-4x      Log On


   



Question 116793: X+1=radical 17-4x
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%2B1=sqrt%2817-4x%29
%28x%2B1%29%5E2=17-4x
x%5E2%2B2x%2B1=17-4x
x%5E2%2B6x-16=0
%28x%2B8%29%28x-2%29=0
highlight%28x=-8%29 and highlight%28x=2%29
Check your answers
x%2B1=sqrt%2817-4x%29
-8%2B1=sqrt%2817-4%28-8%29%29
-7=sqrt%2817%2B32%29
-7=sqrt%2849%29
-7=-7 Remember the square root can be +7 or -7
True statement.
x%2B1=sqrt%2817-4x%29
2%2B1=sqrt%2817-4%282%29%29
3=sqrt%2817-8%29
3=sqrt%289%29
3=3
True statement.
Good answers