Use interval notation to express the set of real numbers x that satisfies the inequality (x+2)(x-5) < 0.

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31-07-2022
Mathematics

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Use interval notation to express the set of real numbers x that satisfies the inequality (x+2)(x-5) < 0.

Sagot :

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lhannearaujo lhannearaujo · Answer 1 · 2022-08-01T13:20:40-04:00

The interval notation to express the set of real numbers x that satisfies the given inequality is -2<x<5. You also can represent it as (-2,5)

Inequality

It is an expression mathematical that represents a non-equal relationship between a number or another algebraic expression. Therefore, it is common the use following symbols: ≤ (less than or equal to), ≥ (greater than or equal to), < (less than), and > (greater than).

The solutions for inequalities can be given by: a graph in a number line or numbers.

For solving this exercise, it is necessary to find a number solution for the given inequality.

First, you should find the critical points of the inequality.

x+2=0

x = -2

and

x-5=0

x=5

Write, the intervals in between critical points. Therefore, -2<x<5.

Use interval notation to express the set of real numbers x that satisfies the inequality (x+2)(x-5) < 0.

Sagot :

Inequality

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