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Popular >

x^2-4x-25>20

Solution

x^{2} - 4 x - 25 > 20

Solution

x < - 5 or x > 9

+1

Solution steps

x^{2} - 4 x - 25 > 20

Rewrite in standard form

x^{2} - 4 x - 45 > 0

Factor

x^{2} - 4 x - 45 : (x + 5) (x - 9)

(x + 5) (x - 9) > 0

Identify the intervals

x < - 5 or x > 9

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Frequently Asked Questions (FAQ)

What is x^2-4x-25>20 ?
The solution to x^2-4x-25>20 is x<-5\lor x>9