Question

(5+√7)(2+√5) fully simplify this..... ​

Answer 1

Answer:

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Answer 2

$\sf{\left(5+\sqrt{7}\right)\left(2+\sqrt{5}\right)$

$\to\sf{5\cdot \:2+5\sqrt{5}+\sqrt{7}\cdot \:2+\sqrt{7}\sqrt{5}}$

$\to\sf{5\cdot \:2+5\sqrt{5}+2\sqrt{7}+\sqrt{7}\sqrt{5}}$

$\to\bf{10+5\sqrt{5}+2\sqrt{7}+\sqrt{7}\sqrt{5}}$