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

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Answer variants:

a + b + c

(a - 2 b) (5 + 2 c)

(a - 2 b) (5 - 2 c)

a (a - b)

m (a + b + c)

a^{2} (a - b)

(x + 1) (1 - y)

(x - 1) (1 - y)

Factorise the following:

Did you find an error?

5. Two mark example problems IV