Question

X-√x=20 ,what is the value of x?

Answer 1

Answer:

Step-by-step explanation:

x - root x = 20

Squaring on both sides

x² - x - 20 = 0

x² + 4x - 5x - 20 = 0

x(x + 4) - 5(x + 4) = 0

(x + 4) ( x - 5) = 0

x = - 4,5

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