which of the following expression is a perfect square?
A.
[tex]3 { \times }^{2} [/tex]
B.
[tex]4x[/tex]
C.9
[tex]9 \times {}^{3} | [/tex]
D.
[tex]16 \times {}^{4} [/tex]
A.
[tex]3 { \times }^{2} [/tex]
B.
[tex]4x[/tex]
C.9
[tex]9 \times {}^{3} | [/tex]
D.
[tex]16 \times {}^{4} [/tex]
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