Find the square root of \( (4 a+5 b+5 c)^{2}-(5 a+ \) \( 4 b+4 c)^{2}+9 a^{2} \). (W) (a) \( \sq...

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Find the square root of \( (4 a+5 b+5 c)^{2}-(5 a+ \) \( 4 b+4 c)^{2}+9 a^{2} \).
(W)
(a) \( \sqrt{3} \)
(b) \( 3(b+c-a) \)
(c) \( 3(b+c) \)
(d) \( 3(b+c-a) \)
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