Question

Q.22 simplify (1) (5+√7)(2+√5)​

Answer 1

Answer:

The answer is $10+5\sqrt 5+2\sqrt 7+\sqrt{35}$

Step-by-step explanation:

$(5+\sqrt 7)(2+\sqrt 5)\\=5(2+\sqrt 5)+\sqrt 7(2+\sqrt 5)\\=10+5\sqrt 5+2\sqrt 7+\sqrt{35}$

Answer 2

Answer:

$\begin{gathered}(5+\sqrt 7)(2+\sqrt 5)\\=5(2+\sqrt 5)+\sqrt 7(2+\sqrt 5)\\=10+5\sqrt 5+2\sqrt 7+\sqrt{35}\end{gathered}$