Question

rationalize the dinominator 8/7-3√5​

Answer 1

Answer:

$\frac{8}{7 - 3 \sqrt{5} } = \frac{8 \times (7 + 3 \sqrt{5} )}{(7 - 3 \sqrt{5} ) \times (7 + 3 \sqrt{5}) }$

=

$\frac{(56 + 24 \sqrt{5} )}{49 - 45} = \frac{56 + 24 \sqrt{5} }{4} = 14 + 6 \sqrt{5}$

Answer 2

Answer:

To rationalise the denominator we have to multiply numerator and denominator by 3√5

Step-by-step explanation:

now the question

8√7 / 3√5

= 8√7 x 3√5 / 3√5 x 3√5

= 24√35 / 9 x 5

=8√35 / 15

i hope this is helpful for you