Two mark exercise problems - II — task. Mathematics State Board, Class 10.

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Find the square root of the following.

(i)

4 x^{2} + 20 x + 25

Answer:

The square root

4 x^{2} + 20 x + 25

is

\((5x + 2)\)
\((2x + 5)\)
\(|(2x + 5)|\)
\(|(5x + 2)|\)

(ii)

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}

is

\(|(3x - 4y - 5z)|\)
\(|(3x + 4y + 5z)|\)
\(|(3x + 4y - 5z)|\)
\(|(3x - 4y + 5z)|\)

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