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Popular >

-x^2-5x-4>0

Solution

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

Solution

- 4 < x < - 1

+1

Interval Notation

(- 4, - 1)

Solution steps

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

Factor

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

- (x + 1) (x + 4) > 0

Multiply both sides by

- 1

(reverse the inequality)

(- (x + 1) (x + 4)) (- 1) < 0 \cdot (- 1)

Simplify

(x + 1) (x + 4) < 0

Identify the intervals

- 4 < x < - 1

Popular Examples

x^{2} + 18 x + 129 = 0

2 x + 11 = - 2 x - 8

3/4 y-11<= 6/5+12y

\frac{3}{4} y - 11 \leq \frac{6}{5} + 12 y

1.75*10^{-5}=(x^2)/(0.1)

1.75 \cdot 1 0^{- 5} = \frac{x ^{2}}{0.1}

-2=(a(0-3))/((0+3)(0-4))

- 2 = \frac{a ( 0 - 3 )}{( 0 + 3 ) ( 0 - 4 )}

Frequently Asked Questions (FAQ)

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