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Mathematics, 26.09.2019 15:50 brandonthomas11

Simplify this expression.

3x2(7x2 - 9)

a.
21x2 - 9
b.
21x2 - 27x2
c.
21x4 - 9
d.
21x4 - 27x2

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Simplify this expression.

3x2(7x2 - 9)

a.
21x2 - 9
b.
21...

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