If 18+230+242+235=a+b+c , then b2=

18+230+242+235 =5+6+7+2.5×6+26×7+27×5 =5+6+7 ∴a=5,b=6,c=7 ∴b2=62=36

If 18+230+242+235=a+b+c , then b2=

18+230+242+235 =5+6+7+2.5×6+26×7+27×5 =5+6+7 ∴a=5,b=6,c=7 ∴b2=62=36

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If $\sqrt{18 + 2 \sqrt{30} + 2 \sqrt{42} + 2 \sqrt{35}} = \sqrt{a} + \sqrt{b} + \sqrt{c}$ , then $b^{2} =$

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\sqrt{18 + 2 \sqrt{30} + 2 \sqrt{42} + 2 \sqrt{35}}

$= \sqrt{5 + 6 + 7 + 2. \sqrt{5 \times 6} + 2 \sqrt{6 \times 7} + 2 \sqrt{7 \times 5}}$

$= \sqrt{5} + \sqrt{6} + \sqrt{7}$

$∴ a = 5, b = 6, c = 7$

$∴ b^{2} = 6^{2} = 36$

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If $\sqrt{18 + 2 \sqrt{30} + 2 \sqrt{42} + 2 \sqrt{35}} = \sqrt{a} + \sqrt{b} + \sqrt{c}$ , then $b^{2} =$