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MrMuchimi
3 years ago
10

PLEASE HELP MATHS PROBLEM!!!

Mathematics
2 answers:
UkoKoshka [18]3 years ago
5 0

Step-by-step explanation:

\frac{5}{1 -  \sqrt{7} }  \\  multiply \: both \: by \: (1 +  \sqrt{7) }  \\  \frac{5(1 +  \sqrt{7)} }{(1 -  \sqrt{7})(1 +  \sqrt{7)}  }  \\ =   \frac{5(1 +  \sqrt{7)}}{1 -  { \sqrt{7} }^{2} }   \\  =  \frac{5(1 +  \sqrt{7)} }{1 - 7}  \\  =  \frac{5(1 +  \sqrt{7)} }{ - 6}  \\  =  \frac { - 5}{ \:  6} \frac{(1 +  \sqrt{7}) }{}

adoni [48]3 years ago
4 0

Just ask google ot will halp you better but i think its -48

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