Question

$\sqrt{98 } \div \sqrt{2} =$

Answer 1

$\sqrt{98 } \div \sqrt{2}$

.

Rewrite 98 as 49 x 2:

$= \sqrt{49 \times 2 } \div \sqrt{2}$

.

Rewrite 49 as 7²:

$= \sqrt{7^2 \times 2 } \div \sqrt{2}$

.

Evaluate 7²:

$= 7\sqrt{2 } \div \sqrt{2}$

.

Divide:

$= 7$

Answer 2

$\frac{ \sqrt{98} }{ \sqrt{2} } = \frac{ \sqrt{49 \times 2} }{ \sqrt{2} } = \frac{7 \sqrt{2} }{ \sqrt{2} } = 7$

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