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Step-by-step explanation:
Productof
(5+
7
)(2+
5
)
=10+5
5
+2
7
+
35
Step-by-step explanation:
\begin{gathered} Product\: of\\ \: (5+\sqrt{7})(2+\sqrt{5})\\=5(2+\sqrt{5})+\sqrt{7}(2+\sqrt{5})\\=10+5\sqrt{5}+2\sqrt{7}+\sqrt{7}\times \sqrt{5}\\=10+5\sqrt{5}+2\sqrt{7}+\sqrt{35}\end{gathered}
Productof
(5+
7
)(2+
5
)
=5(2+
5
)+
7
(2+
5
)
=10+5
5
+2
7
+
7
×
5
=10+5
5
+2
7
+
35
Therefore,
\begin{gathered}Product\: of\\ \: (5+\sqrt{7})(2+\sqrt{5})\\=10+5\sqrt{5}+2\sqrt{7}+\sqrt{35}\end{gathered}
Productof
(5+
7
)(2+
5
)
=10+5
5
+2
7
+
35
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