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

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Answer variants:

x^{3} + {15 x}^{2} + 74 x + 120

{27 x}^{3} - {9 x}^{2} - 18 x + 8

{4 x}^{2} + {9 y}^{2} + {16 z}^{2} + 12 xy + 24 yz + 16 xz

1. Expand \((2x + 3y + 4z)^2\).

Answer:

\((2x + 3y + 4z) =\)

2. (i) Expand \((x + 5)(x + 6)(x + 4)\).

Answer:

\((x + 5)(x + 6)(x + 4) =\)

(ii) Expand \((3x - 1)(3x + 2)(3x - 4)\).

Answer:

\((3x - 1)(3x + 2)(3x - 4) =\)

Did you find an error?

3. Two mark example problems II