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144a
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144a
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2a\left(2+70\right)
Combine a and a to get 2a.
2a\times 72
Add 2 and 70 to get 72.
144a
Multiply 2 and 72 to get 144.
2a\left(2+70\right)
Combine a and a to get 2a.
2a\times 72
Add 2 and 70 to get 72.
144a
Multiply 2 and 72 to get 144.
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Limits
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