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NemiM [27]
3 years ago
13

What is the solution set of 4x 2 - 36 = 0? A.{-3} B.{3} C.{-3, 3}

Mathematics
2 answers:
Dima020 [189]3 years ago
5 0
It is short work to check the answer choices.
  4*3² -36 = 0 . . . . yes, so +3 is a solution
  4*(-3)² -36 = 0 . . . . yes, so -3 is a solution

The appropriate choice is ...
  C. {-3, 3}
Nimfa-mama [501]3 years ago
4 0
4x^2 - 36 = 0
4x^2 = 36
x^2 = 9
x = 3 or -3
the answer is C
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