Find and correct errors of the following mathematical expressions:
$(2 a + 3 b) (a - b) = 2 a^{2} - 3 b^{2}$

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Solution

The given statement is incorrect. Middle term is missing in the expression.
Correct statement is
$(2 a + 3 b) (a - b) = 2 a^{2} + a b - 3 b^{2}$

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Similar questions

Find and correct the errors in the statement: (2a + 3b) (a − b) = 2a² − 3b²

(2 a + 3 b) (a - b) = 2 a^{2} - 3 b^{2}

(2 a + 3 b) (a - b) = 2 a^{2} - 3 b^{2}

3 x + 2 x = 5 x^{2}

x (3 x + 2) =

3 x^{2} + 2

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