5×21/-1+9
105/-1 +9
-105 +9
-96
hope that helps
Answer:

Step-by-step explanation:
So we have the equation:

Let's let u be equal to x². So:

Factor:

Zero Product Property:

Subtract:

Replace:

Take square root:

Simplify:

Answer:
11
Step-by-step explanation:
| | takes the absolute value of a number so it wouldn't be negative
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