Answer:
I have no clue but i have an examm sorry
Step-by-step explanation:
Answer:
12
Step-by-step explanation:

Pay attention in school bud
Justify "<span>x2 = 25 is {±5}"
First, please write x^2, not x2.
</span><span>x^2 = 25; solve for x. Take the sqrt of both sides. Must write "plus or minus " in front of the sqrt of 25:
x^2 = 25 becomes x = plus or minus 5, so x: {-5, 5}</span>
Addition or something else i think 11x 5