factorise the following
m^2 n^2 + m^2 + n^2 + 1
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Answer:
Step-by-step explanation:
m²n²+ m²+ n² + 1 = m² ( n² + 1 ) + 1 ( n² + 1 )
= ( m² + 1 ) ( n² + 1 ) is the answer.
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