Question

Find the value of 5×√3+2×√7.​

Answer 1

Answer:

I Think Answer is 143

Step-by-step explanation:

5×√3+2√7

5×9+2×49

45+49

143 Answer

Answer 2

Answer:

7+435+23=a+b3

=a+b3

Since rationalization of c+da+b=c+da+b×c−dc−d

Taking L.H.S.

By rationalization,

7+435+23 = 7+435+23× 7−437−43

Since,   {(a+b)(a−b)=a2−b2}

            = [(7)2−(43)2](5+23

Explanation : I think it might help

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