Tell me example 8 of maths which are given in pictures??
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Hey mate here is ur answer is in image :
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Step-by-step explanation:it's a determinant of order 2 and is solved as below. (2x+ 3) × (x + 2) - (2x + 1)× (x + 2) = 2x^2 + 7x +6 - 2x^2 -5x -2
=2x+ 4.
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