SOLUTION: Could you please help me solve this equation....The directions say Solve Each Equation by making an appropriate solution...Here is the problem: x-13√x+40=0 √=Squa

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: Could you please help me solve this equation....The directions say Solve Each Equation by making an appropriate solution...Here is the problem: x-13√x+40=0 √=Squa      Log On


   

Question 99713: Could you please help me solve this equation....The directions say Solve Each Equation by making an appropriate solution...Here is the problem:
x-13√x+40=0
√=Square root...Didn't know if that looked like one so I was telling you what it was...
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
x-13sqrt%28x%29%2B40=0
x%2B40=13sqrt%28x%29
square each side: x^2+80x+1600=169x
x^2-89x+1600=0
factor: (x-64)(x-25)=0
x=64 or x=25
check:
64-13sqrt(64)+40=0...64-13*8+40=0...64-104+40=0 true
25-13sqrt(25)+40=0...25-13*5+40=0...25-65+40=0 true
Ed