SOLUTION: if 3 more than twice the square root of a number is 17, find the number

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Question 314747: if 3 more than twice the square root of a number is 17, find the number
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
let the number be x
sqrt of the number = sqrtx
twice the sqrt 3= 2sqrtx
3 more = 2sqrtx +3
..
2sqrtx +3 =17
2sqrtx=20
square both sides of equation
4*x=20
x=5