# Solve x^{2 }- 4 = 5 by graphing the related function.

There are two solutions 1 and -1

There is one solution 1

There are no real number solutions.

There are two solutions 3 and -3

**Solution:**

Solving x^{2} - 4 = 5 we have

x^{2} - 4 = 5

x^{2} = 9

x = ±3

x = ±3 are the zeroes of the function y = x^{2} - 9 as evident from the graph below:

The zeroes of the graph reveal x = -3 and x = 3

## Solve x^{2 }- 4 = 5 by graphing the related function

**Summary:**

Solving x^{2 }- 4 = 5 by graphing the related function we get two solutions 3 and -3

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