Question

Hurry and explain if you can

How many answers does the √100 have? A 3 B 2 C 1 D 0

Answer 1

B. 2

Explanation:

`√(100)` = ±10

easy way to explain is by factoring:

x² = 100

x² - 100 = 0

(x + 10) (x - 10)

if we put them both equal to 0, its give us 2 x value +10 and -10