DollyPolly
DollyPolly
19-10-2014
Mathematics
Answered
2³¹ + 2³⁰ + 2²⁹ = x · 2²⁸
x=?
Answer :
mariamikayla
mariamikayla
19-10-2014
[tex]2^{31}+ 2^{30}+2^{29}=x*2^{28} \\\\ 2^{28}(2^3+2^2+2)=x*2^{28} \\\\ 2^3+2^2+2=x \\\\ x=8+4+2 \\\\ \boxed{x=14}[/tex]
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konrad509
konrad509
19-10-2014
[tex]2^{31}+2^{30}+2^{29}=\\ 2^{28}(2^3+2^2+2)=\\ 2^{28}(8+4+2)=\\ 2^{28}\cdot14\\\\ x=14[/tex]
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