Rationalize the denominator of 8 / 7−3√5
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Solution:
= 8/(7 - 3√5) • (7 + 3√5)/(7 + 3√5)
= 8/(7 + 3√5)/(7)^2 - (3√5)^
= 8/(7 + 3√5)/49 - 45
= 8/(7 + 3√5)/4
= 2(7 + 3√5)
= 14 + 6√5
Hope this will help.
= 8/(7 - 3√5) • (7 + 3√5)/(7 + 3√5)
= 8/(7 + 3√5)/(7)^2 - (3√5)^
= 8/(7 + 3√5)/49 - 45
= 8/(7 + 3√5)/4
= 2(7 + 3√5)
= 14 + 6√5
Hope this will help.
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