6÷2(1+2) has one implicit operator and therefore has two terms.
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::::6
::-------
:::2(1+2)
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If we introduce a second implicit operator 6÷2*(1+2) the equation now has three terms.
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:::6
::------- * (1+2)
:::2
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==The equation is not ambiguous ==
===6÷2(1+2) is not equal to 6÷2*(1+2)===