Question

$x^{2} -( 6 \div 5)x + 4 \div 25 = 0. \\ \\ 25x^{2} - 15x + 4 = 0 \\ how \: it \: get \: converted \: into \: like \: this$
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Answer 1

I tried to solve it but I don't think that the middle term of to prove is correct the question should be like x^2-(6\5)c+4\25=0 then 25x^2 -30x+4=0
Explanation
So please recheck your question

Hope my answer help you