Question

rationalize the denominator of -1 root7 -2​

Answer 1

Answer:

$- 1 \div \sqrt{7} - 2 \times \sqrt{7} + 2 \div \sqrt{7} + 2 \\ - \sqrt{7} + 2 \div \sqrt{4} 9 - 4 \\ - \sqrt{7} + 2 \div 7 - 4 \\ - \sqrt{7} + 2 \div 3$