Question

Which of the following equations have no solution? Select all that apply.

A) |x| = -9
B) |x| = -7
C) |x| = 93.2
D) |x| = 5

Answer 1

the answer should be B and A

Answer 2

Since Modulus of any real number is a positive Real number.

That is modulus is defined as

| x |= x, if x>0

and -x , if x<0.

=0 , if x=0.

|x|≠ -9,

and , |x|≠-7,

∵ modulus of real number is always Positive.

So, option A |x| = -9

and Option B,|x| = -7

are equation having no solution.