Question

Which expression is equivalent to  (21x−2)^0 ?(1 point)Responses(21x12y)1open paren 21 x to the 12th power y close paren to the 1th power0x2⋅21x40 times x squared times 21 x to the 4th power3x2⋅(17)x−23 times x squared times 1 seventh x to the negative 2 power7x27x2

Answer 1

The expression \((21x^{-2})^0\) is equal to 1, because any non-zero expression raised to the power of 0 is equal to 1.

There are no other expressions in the provided options that match this result, as all the other options involve numerical or variable values which represent distinct quantities.

So, the equivalent expression is:

**1**