Two mark exercise problem IX — task. Mathematics State Board, Class 10.

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Find the square root of the following.

9 x^{2} - 24 xy + 30 xz - 40 yz + 25 z^{2} + 16 y^{2}

Answer:

The square root

9 x^{2} - 24 xy + 30 xz - 40 yz + 25 z^{2} + 16 y^{2}

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14. Two mark exercise problem IX