Solve using the 4 steps to solve a square root equation. label the steps. x^2-5=20

x  = 5  

Step-by-step explanation:x^2 - 5 = 20

x^2 = 20+5

x^2 = 25

x  = 5  taking square root

Let x = # chapters you have left to read

And you also know that the amount you have left to read is the total number of chapters minus the amount you already read.

The total number of chapters is 8.

The amount you already read is 3/8 * 8 = 3.

Thus:

x = 8 - (3/8 * 8) = 8 - 3 = 5.

You have 5 chapters left to read.