Question

please solve the question immediately​

Answer 1

Hope it's clear...

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Answer 2

hey mate I really suck at maths but I think this might be correct still not sure...

Explanation:

if a= 3√7

b= 2√7

and c= √7

so a(b-c)=(a×b)-(a×c)

so by putting the values of each in the expression

or, 3√7×(2√7 - √7) = (3√7×2√7) - (3√7×√7)

{now opening the brackets i.e multiplying it with each other}

or, 6√7 - 3√7 = (6√7) - (3√7)

or, 6√7 - 3√7 = 6√7 - 3√7

.°. LHS =RHS

Hence its proved that a(b-c)=(a×b)-(a×c)

but mate still I'm not sure of the ans... still tried my best...