This reminds me of one of my friends. Sometimes he was supposed to solve a problem in algebra in which he had to prove some equation (LHS = RHS).
At some step he found that the expression became very complex. Then his idea was to just ignore some part of the expression in the next step. For example, if the expression had lots of terms, then in the next step he left out one term. He thought that if ignores some small part from a complex expression, then nobody will notice. 😆
But teachers noted.
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