(X-5)^2-9=0 i need help

{8, 2}

Step-by-step explanation: Move the -9 to the right side.

So we have (x - 5)² = 9.

Square rooting both sides, we have x - 5 = ± 3.

Always use plus or minus when square

rooting both sides of an equation.

So either x - 5 = 3 or x - 5 = -3.

Solving each equation from here, our solution is {8, 2}.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

21

step-by-step explanation: