You can put this solution on YOUR website! √x+35 + 7 = x
Rearrange:
x - sqrt(x) -42 = 0
This is a quadratic in sqrt(x)
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Rewrite to see that:
(sqrt(x))^2 - sqrt(x) - 42 = 0
Factor:
(sqrt(x)-7)(sqrt(x)+6) = 0
Positive solution:
sqrt(x) = 7
x = 49
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Checking:
sqrt(49)+ 35 + 7 = 49
7 + 35 + 7 = 49
49 = 49
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Cheers,
Stan H.
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