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3a^{2}
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3a^{2}
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\left(3a\right)^{2}-2a^{2}\times 3
Multiply a and a to get a^{2}.
3^{2}a^{2}-2a^{2}\times 3
Expand \left(3a\right)^{2}.
9a^{2}-2a^{2}\times 3
Calculate 3 to the power of 2 and get 9.
9a^{2}-6a^{2}
Multiply 2 and 3 to get 6.
3a^{2}
Combine 9a^{2} and -6a^{2} to get 3a^{2}.
\left(3a\right)^{2}-2a^{2}\times 3
Multiply a and a to get a^{2}.
3^{2}a^{2}-2a^{2}\times 3
Expand \left(3a\right)^{2}.
9a^{2}-2a^{2}\times 3
Calculate 3 to the power of 2 and get 9.
9a^{2}-6a^{2}
Multiply 2 and 3 to get 6.
3a^{2}
Combine 9a^{2} and -6a^{2} to get 3a^{2}.
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Limits
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