SOLUTION: Square root of x+56=x

Question 84334This question is from textbook Prentice Hall Algebra 1 California Edition
: Square root of x+56=x This question is from textbook Prentice Hall Algebra 1 California Edition

Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
Square root of x+56=x
square both sides to get rid of the radical and we get:
subtract x and also 56 from both sides
collect like terms
quadratic in standard form and it can be factored

and

Since the square root of 49 is plus or minus 7, this solution works also.
(Note: If the A coefficient of a quadratic is 1, then the B coefficient is the sum of the factors of the C coefficient. In this case, the factors of the C coefficient that work are -8 and +7)

Hope this helps---ptaylor

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