Question

under root 63+ under root 28 -under root 112??? Maths
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Answer 1

Please tell me about the Question

Answer 2

Answer:

2√7(√2-1)

Step-by-step explanation:

$\sqrt{63} + \sqrt{28} - \sqrt{112} = \sqrt{7 \times 4 \times 2} + \sqrt{7 \times 4} - \sqrt{7 \times 16} = 2 \sqrt{14} + 2 \sqrt{7} - 4 \sqrt{7} = 2 \sqrt{14} - 2 \sqrt{7} = 2 \sqrt{7} ( \sqrt{2} - 1)$