Numbers and algebra

Root

A value that reverses a power, or a value that makes an equation or function equal zero, depending on context.

Common notationⁿ√x or f(x)=0

In one sentence

What does Root mean?

A value that reverses a power, or a value that makes an equation or function equal zero, depending on context.

How it is written

ⁿ√x or f(x)=0

A compact example

√49=7 because 7²=49.

Other names and search terms

radical, zero of a function.

Where this fits

When should you learn Root?

The first encounter is not the final level. Many ideas begin visually, become computational in high school and become formal in college.

  1. 1Pre-high schoolUsually introduced
  2. 2High schoolGreater depth
  3. 3CollegeGreater depth
  4. 4AdvancedGreater depth
Typical subjects
  • Arithmetic
  • Algebra
Know first
  • Basic arithmetic
What it unlocks
  • Equations
  • Functions
  • Precalculus

Clear answers

Questions about Root

What does Root mean in mathematics?

A value that reverses a power, or a value that makes an equation or function equal zero, depending on context.

How is Root written?

A common notation is ⁿ√x or f(x)=0.

What is an example of Root?

√49=7 because 7²=49.

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