Rationalize \(\frac{5\sqrt{7} - 7\sqrt{5}}{\sqrt{7} - \sq...
Rationalize 5√7−7√5√7−√5
-2√35
4√7 - 6√5
-√35
4√7 - 8√5
√35
Correct answer is C
5√7−7√5√7−√5 = 5√7−7√5√7−√5 x √7+√5√7+√5
= (5×7)+(5√7×5)−(7×√5×7)(−7×5)(√7)2
= 5√35−7√352
= −2√352
= - √35
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