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Popular >

-x^2+4x+5>0

Solution

- x^{2} + 4 x + 5 > 0

Solution

- 1 < x < 5

+1

Interval Notation

(- 1, 5)

Solution steps

- x^{2} + 4 x + 5 > 0

Factor

- x^{2} + 4 x + 5 : - (x + 1) (x - 5)

- (x + 1) (x - 5) > 0

Multiply both sides by

- 1

(reverse the inequality)

(- (x + 1) (x - 5)) (- 1) < 0 \cdot (- 1)

Simplify

(x + 1) (x - 5) < 0

Identify the intervals

- 1 < x < 5

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-4log_{5}(x-5)>= 3

- 4 lo g_{5} (x - 5) \geq 3

simplify (n!)/((n-2)!)simplify

\frac{n !}{( n - 2 ) !}

-16/2025 x^2+9/5 x+1.5=0

- \frac{16}{2025} x^{2} + \frac{9}{5} x + 1.5 = 0

Frequently Asked Questions (FAQ)

What is -x^2+4x+5>0 ?
The solution to -x^2+4x+5>0 is -1<x<5