Question

x2 -16 = 0
x2 = 16
x = 4
Elizabeth solved this problem and claims to have found all solutions. Jim says she is wrong because 42 = 16 but also (-4)2 = 16. What type of reasoning is Jim using?

Answer 1

the result of the square root of any real X is \[\pm \sqrt{x}\]

Answer 2

If you square a positive or negative number, you get the same result.

Answer 3

so is it

A)
algebraic


B)
counterexample


C)
deductive


D)
inductive

Answer 4

A?

Answer 5

ok thanks