Two mark exercise problems III — task. Mathematics State Board, Class 8.

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(i) \(5x(2y - 3) =\)

(ii) \(-2p(5p^2 - 3p + 7) =\)

(iii) \(3mn(m^3n^3 - 5m^2n + 7mn^2) =\)

(iv) \(x^2(x + y + z) + y^2(x + y + z) + z^2(x - y - z) =\)

Answer variants:

10 xy - 15 x

- 10 p^{3} + 6 p^{2} - 14 p

10 xy + 15 x

{3 m}^{4} n^{4} + {15 m}^{3} n^{2} - {21 m}^{2} n^{3}

x^{3} + y^{3} - z^{3} + x^{2} y + x^{2} z + x y^{2} + z y^{2} + x z^{2} + {yz}^{2}

10 p^{3} + 6 p^{2} - 14 p

x^{3} + y^{3} - z^{3} + x^{2} y + x^{2} z + x y^{2} + z y^{2} + x z^{2} - {yz}^{2}

{3 m}^{4} n^{4} - {15 m}^{3} n^{2} + {21 m}^{2} n^{3}

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9. Two mark exercise problems III