Two mark example problems V — task. Mathematics State Board, Class 9.

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Factorize the following:

Answer variants:

{(1 - 5 a)}^{2}

(6 m + 7 n) (6 m - 7 n)

{(2 x + 3 y)}^{2}

{(3 x + 2 y)}^{2}

{(5 a - 1)}^{2}

(7 m + 6 n) (7 m - 6 n)

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6. Two mark example problems V