Question

please give me the answers please give me the answers please give me the answers​

Answer 1

Answer Number 14.

Yes it is irrational as when we will subtract this equation it will give us the answer

-5+root 5

and according to it a rational number cannot have roots

Answer Number 15.

$\sqrt{242} = \sqrt{121 \times 2} = 11 \sqrt{2 }$

$\sqrt{50} = \sqrt{5 \times 5 \times 2} = 5 \sqrt{2}$

$\sqrt{98} = \sqrt{7 \times 7 \times 2} = 7 \sqrt{2}$

$8 \sqrt{242} + 3 \sqrt{98} - 5 \sqrt{50}$

$= 88 \sqrt{2} + 21 \sqrt{2} - 25 \sqrt{2}$

$= 84 \sqrt{2}$

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