Question

- x - 4x > -10 Solve inequality

Answer 1

Let's solve your inequality step-by-step.

−x−4xx>10

−4x2−x>10

Let's find the critical points of the inequality.

−4x2−x=10

−4x2−x−10=10−10(Subtract 10 from both sides)

−4x2−x−10=0

For this equation: a=-4, b=-1, c=-10

−4x2+−1x+−10=0

x=

−b±√b2−4ac

2a

(Use quadratic formula with a=-4, b=-1, c=-10)

x=

−(−1)±√(−1)2−4(−4)(−10)

2(−4)

x=

1±√−159

−8