Find the nonpermissible replacement for a in this expression. A square over -2a +6

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Mitchell Skurnik · Answer 1 · 2018-12-16T07:31:07+0000

The denominator may not equal 0, so you need to find where -2a+6 = 0.

This happens at a = 3, so 3 is the nonpermissible replacement.