2.3.2

Solving Double Inequalities

Test yourself

Double Inequalities

Solve -3 < x2 +3 ≤ 4:

Illustrative background for Multiply both sides and the middle by 2Illustrative background for Multiply both sides and the middle by 2 ?? "content

Multiply both sides and the middle by 2

  • This is to get rid of the fraction.
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This is our solution

  • We always want x on its own in the middle.

Jump to other topics

1Proof

2Algebra & Functions

2.1Powers & Roots

2.2Quadratic Equations

2.3Inequalities

2.4Polynomials

2.5Graphs

2.6Functions

2.7Transformation of Graphs

2.8Partial Fractions (A2 Only)

3Coordinate Geometry

4Sequences & Series

5Trigonometry

6Exponentials & Logarithms

7Differentiation

8Integration

9Numerical Methods

10Vectors

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