Question

Which statement is not true? X squared equals 100 if and only if X equals 10 orX equals -10. If X squared equal 100 then X equals 10

Answer 1

Answer:

the second statement is not true

Step-by-step explanation:

If x squared equals 100, it doesn't mean necessarily that x is positive ten, since you can get 100 also by squaring the value (-10):

(-10)$(-10)^{2} = (-10) x (-10) = 100$

The second statement is ignoring the possibility of x being a negative ten which also gives 100 as answered when squared.