What Is The Ans Of This , R Squerd -100=0

What is the ans of this

r squerd -100=0

 

Answer:

x = {-10, +10}

Step-by-step explanation:

Solve using Square Root Property when x² = k, then x = ±√k.

r² - 100 = 0

r² = 100

√(r²) = ±√100  

r = ±√100

r = +10  and  r = -10

Roots: x = {-10, +10}